Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
On Fri, May 9, 2014 at 10:42 PM, Hadley Wickham h.wick...@gmail.com wrote: Beware of the is.* functions: * is.object() does not test the usual definition of objects * is.vector() does not test the usual definition of vectors * is.numeric() does not work the same way as is.character() or is.integer() * is.Date() doesn't exist * is.nan() doesn't return TRUE for some NaNs Can we have an is.is function that tells us these things? is.is(is.object) [1] FALSE Warning: is.object() does not test the usual definition of objects is.is(is.is) [1] TRUE For further exploration, demo(is.things) creates a handy is.ALL function that outputs the result of running a lot of is.X functions on its argument. Barry __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
On 10/05/2014, 6:46 AM, Barry Rowlingson wrote: On Fri, May 9, 2014 at 10:42 PM, Hadley Wickham h.wick...@gmail.com wrote: Beware of the is.* functions: * is.object() does not test the usual definition of objects * is.vector() does not test the usual definition of vectors * is.numeric() does not work the same way as is.character() or is.integer() * is.Date() doesn't exist * is.nan() doesn't return TRUE for some NaNs Can we have an is.is function that tells us these things? is.is(is.object) [1] FALSE Warning: is.object() does not test the usual definition of objects is.is(is.is) [1] TRUE For further exploration, demo(is.things) creates a handy is.ALL function that outputs the result of running a lot of is.X functions on its argument. I tried to write it, but the trouble is, is.is(is.is) is FALSE. Duncan __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
On 10 May 2014, at 12:54 , Duncan Murdoch murdoch.dun...@gmail.com wrote: On 10/05/2014, 6:46 AM, Barry Rowlingson wrote: On Fri, May 9, 2014 at 10:42 PM, Hadley Wickham h.wick...@gmail.com wrote: Beware of the is.* functions: * is.object() does not test the usual definition of objects * is.vector() does not test the usual definition of vectors * is.numeric() does not work the same way as is.character() or is.integer() * is.Date() doesn't exist * is.nan() doesn't return TRUE for some NaNs Can we have an is.is function that tells us these things? is.is(is.object) [1] FALSE Warning: is.object() does not test the usual definition of objects is.is(is.is) [1] TRUE For further exploration, demo(is.things) creates a handy is.ALL function that outputs the result of running a lot of is.X functions on its argument. I tried to write it, but the trouble is, is.is(is.is) is FALSE. Duncan Worse, is.is(mybaby) | is.aint(mybaby) comes out TRUE whatever the value of mybaby. -- Peter Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd@cbs.dk Priv: pda...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
On May 10, 2014, at 3:54 AM, Duncan Murdoch wrote: On 10/05/2014, 6:46 AM, Barry Rowlingson wrote: On Fri, May 9, 2014 at 10:42 PM, Hadley Wickham h.wick...@gmail.com wrote: Beware of the is.* functions: * is.object() does not test the usual definition of objects * is.vector() does not test the usual definition of vectors * is.numeric() does not work the same way as is.character() or is.integer() * is.Date() doesn't exist * is.nan() doesn't return TRUE for some NaNs Can we have an is.is function that tells us these things? is.is(is.object) [1] FALSE Warning: is.object() does not test the usual definition of objects is.is(is.is) [1] TRUE For further exploration, demo(is.things) creates a handy is.ALL function that outputs the result of running a lot of is.X functions on its argument. I tried to write it, but the trouble is, is.is(is.is) is FALSE. Perhaps the R engine will surmount the Singularity when `is.think` returns `is.is`. Duncan David Winsemius Alameda, CA, USA __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
Spencer: Hmmm Well, I don't get what's going on here -- as.character.default is internal -- but could you method-ize a simple synonym: asChar- function(e,...)UseMethod(asChar) asChar.call - function(e,...)deparse(e,...) asChar.default - function(e,...)as.character(e,...) asChar(xDy) [1] x$y asChar(1:5) [1] 1 2 3 4 5 Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 8:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: On 5/8/2014 8:05 PM, Bert Gunter wrote: [1] x$y Spencer: Does deparse(substitute(x$y)) [1] x$y do what you want? No: The problem is methods dispatch. class(quote(x$y)) = 'call', but as.character(quote(x$y)) does NOT go to as.character.call. deparse(quote(x$y)) returns the answer I want, as Greg Snow noted earlier. However, it would be easier to remember if I could write as.character(quote(x$y)) and get the same thing. With as.character.call - function(x, ...)deparse(x, ...), as.character.call(quote(x$y)) returns x$y, as desired. However, the methods dispatch one might naively expect fails, as noted above. Thanks, Spencer Cheers, Bert -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 5:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: as.character.call seems not to work as an alias for deparse. Consider the following: xDy - quote(x$y) class(xDy) call as.character.call - function(x, ...)deparse(x, ...) as.character(xDy) [1] $ x y # fails str(xDy) # language x$y as.character.language - function(x, ...)language as.character(xDy) [1] $ x y Is it feasible to construct a method for as.character that works for objects of class call? Thanks, Spencer # Thanks for the quick replies from Richard Heiberger, Greg Show Bert Gunter. Might it make sense to create as.character.call as an alias for deparse? A few years ago, I wrote several functions like predict.fd as aliases for functions with less memorable names like eval.fd. Doing that made the fda package easier to use, at least for me ;-) Thanks again, Spencer On 5/7/2014 2:39 PM, Bert Gunter wrote: ... and str(quote(x$y)) language x$y as.list(quote(x$y)) [[1]] `$` [[2]] x [[3]] y ## may be instructive. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Wed, May 7, 2014 at 2:30 PM, Greg Snow 538...@gmail.com wrote: deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Spencer Graves, PE, PhD President and Chief Technology Officer Structure Inspection and Monitoring, Inc. 751 Emerson Ct. San José, CA 95126 ph: 408-655-4567 web: www.structuremonitoring.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
On 09/05/2014, 2:41 AM, Bert Gunter wrote: Spencer: Hmmm Well, I don't get what's going on here -- as.character.default is internal -- but could you method-ize a simple synonym: See ?InternalMethods: For efficiency, internal dispatch only occurs on objects, that is those for which is.object returns true. Duncan Murdoch asChar- function(e,...)UseMethod(asChar) asChar.call - function(e,...)deparse(e,...) asChar.default - function(e,...)as.character(e,...) asChar(xDy) [1] x$y asChar(1:5) [1] 1 2 3 4 5 Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 8:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: On 5/8/2014 8:05 PM, Bert Gunter wrote: [1] x$y Spencer: Does deparse(substitute(x$y)) [1] x$y do what you want? No: The problem is methods dispatch. class(quote(x$y)) = 'call', but as.character(quote(x$y)) does NOT go to as.character.call. deparse(quote(x$y)) returns the answer I want, as Greg Snow noted earlier. However, it would be easier to remember if I could write as.character(quote(x$y)) and get the same thing. With as.character.call - function(x, ...)deparse(x, ...), as.character.call(quote(x$y)) returns x$y, as desired. However, the methods dispatch one might naively expect fails, as noted above. Thanks, Spencer Cheers, Bert -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 5:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: as.character.call seems not to work as an alias for deparse. Consider the following: xDy - quote(x$y) class(xDy) call as.character.call - function(x, ...)deparse(x, ...) as.character(xDy) [1] $ x y # fails str(xDy) # language x$y as.character.language - function(x, ...)language as.character(xDy) [1] $ x y Is it feasible to construct a method for as.character that works for objects of class call? Thanks, Spencer # Thanks for the quick replies from Richard Heiberger, Greg Show Bert Gunter. Might it make sense to create as.character.call as an alias for deparse? A few years ago, I wrote several functions like predict.fd as aliases for functions with less memorable names like eval.fd. Doing that made the fda package easier to use, at least for me ;-) Thanks again, Spencer On 5/7/2014 2:39 PM, Bert Gunter wrote: ... and str(quote(x$y)) language x$y as.list(quote(x$y)) [[1]] `$` [[2]] x [[3]] y ## may be instructive. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Wed, May 7, 2014 at 2:30 PM, Greg Snow 538...@gmail.com wrote: deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Spencer Graves, PE, PhD President and Chief Technology Officer Structure Inspection and Monitoring, Inc. 751 Emerson Ct. San José, CA 95126 ph: 408-655-4567 web: www.structuremonitoring.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
Ahhh. Thanks Duncan. -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Fri, May 9, 2014 at 2:41 AM, Duncan Murdoch murdoch.dun...@gmail.com wrote: On 09/05/2014, 2:41 AM, Bert Gunter wrote: Spencer: Hmmm Well, I don't get what's going on here -- as.character.default is internal -- but could you method-ize a simple synonym: See ?InternalMethods: For efficiency, internal dispatch only occurs on objects, that is those for which is.object returns true. Duncan Murdoch asChar- function(e,...)UseMethod(asChar) asChar.call - function(e,...)deparse(e,...) asChar.default - function(e,...)as.character(e,...) asChar(xDy) [1] x$y asChar(1:5) [1] 1 2 3 4 5 Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 8:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: On 5/8/2014 8:05 PM, Bert Gunter wrote: [1] x$y Spencer: Does deparse(substitute(x$y)) [1] x$y do what you want? No: The problem is methods dispatch. class(quote(x$y)) = 'call', but as.character(quote(x$y)) does NOT go to as.character.call. deparse(quote(x$y)) returns the answer I want, as Greg Snow noted earlier. However, it would be easier to remember if I could write as.character(quote(x$y)) and get the same thing. With as.character.call - function(x, ...)deparse(x, ...), as.character.call(quote(x$y)) returns x$y, as desired. However, the methods dispatch one might naively expect fails, as noted above. Thanks, Spencer Cheers, Bert -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 5:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: as.character.call seems not to work as an alias for deparse. Consider the following: xDy - quote(x$y) class(xDy) call as.character.call - function(x, ...)deparse(x, ...) as.character(xDy) [1] $ x y # fails str(xDy) # language x$y as.character.language - function(x, ...)language as.character(xDy) [1] $ x y Is it feasible to construct a method for as.character that works for objects of class call? Thanks, Spencer # Thanks for the quick replies from Richard Heiberger, Greg Show Bert Gunter. Might it make sense to create as.character.call as an alias for deparse? A few years ago, I wrote several functions like predict.fd as aliases for functions with less memorable names like eval.fd. Doing that made the fda package easier to use, at least for me ;-) Thanks again, Spencer On 5/7/2014 2:39 PM, Bert Gunter wrote: ... and str(quote(x$y)) language x$y as.list(quote(x$y)) [[1]] `$` [[2]] x [[3]] y ## may be instructive. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Wed, May 7, 2014 at 2:30 PM, Greg Snow 538...@gmail.com wrote: deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Spencer Graves, PE, PhD President and Chief Technology Officer Structure Inspection and Monitoring, Inc. 751 Emerson Ct. San José, CA 95126 ph: 408-655-4567 web: www.structuremonitoring.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
Hi, Duncan: Thanks very much. I used to think that everything in R was a object. Now I know that is.object(quote(x)) is FALSE. (A decade ago, S-Plus asked me if I wanted to save changes to history. I thought, Wow! Do I get to change history? Hadley's Advanced R book mentions Reference classes in his OO field guide. It includes an example where changing a changes a copy previously made: b - a b$balance # [1] 200 a$balance - 0 b$balance # [1] 0 This bothers me far more than an object in R that's not an object ;-) Best Wishes, Spencer On 5/9/2014 6:48 AM, Bert Gunter wrote: Ahhh. Thanks Duncan. -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Fri, May 9, 2014 at 2:41 AM, Duncan Murdoch murdoch.dun...@gmail.com wrote: On 09/05/2014, 2:41 AM, Bert Gunter wrote: Spencer: Hmmm Well, I don't get what's going on here -- as.character.default is internal -- but could you method-ize a simple synonym: See ?InternalMethods: For efficiency, internal dispatch only occurs on objects, that is those for which is.object returns true. Duncan Murdoch asChar- function(e,...)UseMethod(asChar) asChar.call - function(e,...)deparse(e,...) asChar.default - function(e,...)as.character(e,...) asChar(xDy) [1] x$y asChar(1:5) [1] 1 2 3 4 5 Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 8:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: On 5/8/2014 8:05 PM, Bert Gunter wrote: [1] x$y Spencer: Does deparse(substitute(x$y)) [1] x$y do what you want? No: The problem is methods dispatch. class(quote(x$y)) = 'call', but as.character(quote(x$y)) does NOT go to as.character.call. deparse(quote(x$y)) returns the answer I want, as Greg Snow noted earlier. However, it would be easier to remember if I could write as.character(quote(x$y)) and get the same thing. With as.character.call - function(x, ...)deparse(x, ...), as.character.call(quote(x$y)) returns x$y, as desired. However, the methods dispatch one might naively expect fails, as noted above. Thanks, Spencer Cheers, Bert -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 5:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: as.character.call seems not to work as an alias for deparse. Consider the following: xDy - quote(x$y) class(xDy) call as.character.call - function(x, ...)deparse(x, ...) as.character(xDy) [1] $ x y # fails str(xDy) # language x$y as.character.language - function(x, ...)language as.character(xDy) [1] $ x y Is it feasible to construct a method for as.character that works for objects of class call? Thanks, Spencer # Thanks for the quick replies from Richard Heiberger, Greg Show Bert Gunter. Might it make sense to create as.character.call as an alias for deparse? A few years ago, I wrote several functions like predict.fd as aliases for functions with less memorable names like eval.fd. Doing that made the fda package easier to use, at least for me ;-) Thanks again, Spencer On 5/7/2014 2:39 PM, Bert Gunter wrote: ... and str(quote(x$y)) language x$y as.list(quote(x$y)) [[1]] `$` [[2]] x [[3]] y ## may be instructive. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Wed, May 7, 2014 at 2:30 PM, Greg Snow 538...@gmail.com wrote: deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented,
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
Beware of the is.* functions: * is.object() does not test the usual definition of objects * is.vector() does not test the usual definition of vectors * is.numeric() does not work the same way as is.character() or is.integer() * is.Date() doesn't exist * is.nan() doesn't return TRUE for some NaNs Hadley On Fri, May 9, 2014 at 4:32 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hi, Duncan: Thanks very much. I used to think that everything in R was a object. Now I know that is.object(quote(x)) is FALSE. (A decade ago, S-Plus asked me if I wanted to save changes to history. I thought, Wow! Do I get to change history? Hadley's Advanced R book mentions Reference classes in his OO field guide. It includes an example where changing a changes a copy previously made: b - a b$balance # [1] 200 a$balance - 0 b$balance # [1] 0 This bothers me far more than an object in R that's not an object ;-) Best Wishes, Spencer On 5/9/2014 6:48 AM, Bert Gunter wrote: Ahhh. Thanks Duncan. -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Fri, May 9, 2014 at 2:41 AM, Duncan Murdoch murdoch.dun...@gmail.com wrote: On 09/05/2014, 2:41 AM, Bert Gunter wrote: Spencer: Hmmm Well, I don't get what's going on here -- as.character.default is internal -- but could you method-ize a simple synonym: See ?InternalMethods: For efficiency, internal dispatch only occurs on objects, that is those for which is.object returns true. Duncan Murdoch asChar- function(e,...)UseMethod(asChar) asChar.call - function(e,...)deparse(e,...) asChar.default - function(e,...)as.character(e,...) asChar(xDy) [1] x$y asChar(1:5) [1] 1 2 3 4 5 Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 8:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: On 5/8/2014 8:05 PM, Bert Gunter wrote: [1] x$y Spencer: Does deparse(substitute(x$y)) [1] x$y do what you want? No: The problem is methods dispatch. class(quote(x$y)) = 'call', but as.character(quote(x$y)) does NOT go to as.character.call. deparse(quote(x$y)) returns the answer I want, as Greg Snow noted earlier. However, it would be easier to remember if I could write as.character(quote(x$y)) and get the same thing. With as.character.call - function(x, ...)deparse(x, ...), as.character.call(quote(x$y)) returns x$y, as desired. However, the methods dispatch one might naively expect fails, as noted above. Thanks, Spencer Cheers, Bert -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 5:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: as.character.call seems not to work as an alias for deparse. Consider the following: xDy - quote(x$y) class(xDy) call as.character.call - function(x, ...)deparse(x, ...) as.character(xDy) [1] $ x y # fails str(xDy) # language x$y as.character.language - function(x, ...)language as.character(xDy) [1] $ x y Is it feasible to construct a method for as.character that works for objects of class call? Thanks, Spencer # Thanks for the quick replies from Richard Heiberger, Greg Show Bert Gunter. Might it make sense to create as.character.call as an alias for deparse? A few years ago, I wrote several functions like predict.fd as aliases for functions with less memorable names like eval.fd. Doing that made the fda package easier to use, at least for me ;-) Thanks again, Spencer On 5/7/2014 2:39 PM, Bert Gunter wrote: ... and str(quote(x$y)) language x$y as.list(quote(x$y)) [[1]] `$` [[2]] x [[3]] y ## may be instructive. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Wed, May 7, 2014 at 2:30 PM, Greg Snow 538...@gmail.com wrote: deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
Dear Hadley: Thanks for that. Digits are not numbers. Numbers are not data. Data is not information. Information is not intelligence. Intelligence is not knowledge. Knowledge is not wisdom. And your is. warnings are more useful than my trivia here. Spencer On 5/9/2014 2:42 PM, Hadley Wickham wrote: Beware of the is.* functions: * is.object() does not test the usual definition of objects * is.vector() does not test the usual definition of vectors * is.numeric() does not work the same way as is.character() or is.integer() * is.Date() doesn't exist * is.nan() doesn't return TRUE for some NaNs Hadley On Fri, May 9, 2014 at 4:32 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hi, Duncan: Thanks very much. I used to think that everything in R was a object. Now I know that is.object(quote(x)) is FALSE. (A decade ago, S-Plus asked me if I wanted to save changes to history. I thought, Wow! Do I get to change history? Hadley's Advanced R book mentions Reference classes in his OO field guide. It includes an example where changing a changes a copy previously made: b - a b$balance # [1] 200 a$balance - 0 b$balance # [1] 0 This bothers me far more than an object in R that's not an object ;-) Best Wishes, Spencer On 5/9/2014 6:48 AM, Bert Gunter wrote: Ahhh. Thanks Duncan. -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Fri, May 9, 2014 at 2:41 AM, Duncan Murdoch murdoch.dun...@gmail.com wrote: On 09/05/2014, 2:41 AM, Bert Gunter wrote: Spencer: Hmmm Well, I don't get what's going on here -- as.character.default is internal -- but could you method-ize a simple synonym: See ?InternalMethods: For efficiency, internal dispatch only occurs on objects, that is those for which is.object returns true. Duncan Murdoch asChar- function(e,...)UseMethod(asChar) asChar.call - function(e,...)deparse(e,...) asChar.default - function(e,...)as.character(e,...) asChar(xDy) [1] x$y asChar(1:5) [1] 1 2 3 4 5 Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 8:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: On 5/8/2014 8:05 PM, Bert Gunter wrote: [1] x$y Spencer: Does deparse(substitute(x$y)) [1] x$y do what you want? No: The problem is methods dispatch. class(quote(x$y)) = 'call', but as.character(quote(x$y)) does NOT go to as.character.call. deparse(quote(x$y)) returns the answer I want, as Greg Snow noted earlier. However, it would be easier to remember if I could write as.character(quote(x$y)) and get the same thing. With as.character.call - function(x, ...)deparse(x, ...), as.character.call(quote(x$y)) returns x$y, as desired. However, the methods dispatch one might naively expect fails, as noted above. Thanks, Spencer Cheers, Bert -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 5:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: as.character.call seems not to work as an alias for deparse. Consider the following: xDy - quote(x$y) class(xDy) call as.character.call - function(x, ...)deparse(x, ...) as.character(xDy) [1] $ x y # fails str(xDy) # language x$y as.character.language - function(x, ...)language as.character(xDy) [1] $ x y Is it feasible to construct a method for as.character that works for objects of class call? Thanks, Spencer # Thanks for the quick replies from Richard Heiberger, Greg Show Bert Gunter. Might it make sense to create as.character.call as an alias for deparse? A few years ago, I wrote several functions like predict.fd as aliases for functions with less memorable names like eval.fd. Doing that made the fda package easier to use, at least for me ;-) Thanks again, Spencer On 5/7/2014 2:39 PM, Bert Gunter wrote: ... and str(quote(x$y)) language x$y as.list(quote(x$y)) [[1]] `$` [[2]] x [[3]] y ## may be instructive. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Wed, May 7, 2014 at 2:30 PM, Greg Snow 538...@gmail.com wrote: deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello,
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
as.character.call seems not to work as an alias for deparse. Consider the following: xDy - quote(x$y) class(xDy) call as.character.call - function(x, ...)deparse(x, ...) as.character(xDy) [1] $ x y # fails str(xDy) # language x$y as.character.language - function(x, ...)language as.character(xDy) [1] $ x y Is it feasible to construct a method for as.character that works for objects of class call? Thanks, Spencer # Thanks for the quick replies from Richard Heiberger, Greg Show Bert Gunter. Might it make sense to create as.character.call as an alias for deparse? A few years ago, I wrote several functions like predict.fd as aliases for functions with less memorable names like eval.fd. Doing that made the fda package easier to use, at least for me ;-) Thanks again, Spencer On 5/7/2014 2:39 PM, Bert Gunter wrote: ... and str(quote(x$y)) language x$y as.list(quote(x$y)) [[1]] `$` [[2]] x [[3]] y ## may be instructive. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Wed, May 7, 2014 at 2:30 PM, Greg Snow 538...@gmail.com wrote: deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
[1] x$y Spencer: Does deparse(substitute(x$y)) [1] x$y do what you want? Cheers, Bert -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 5:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: as.character.call seems not to work as an alias for deparse. Consider the following: xDy - quote(x$y) class(xDy) call as.character.call - function(x, ...)deparse(x, ...) as.character(xDy) [1] $ x y # fails str(xDy) # language x$y as.character.language - function(x, ...)language as.character(xDy) [1] $ x y Is it feasible to construct a method for as.character that works for objects of class call? Thanks, Spencer # Thanks for the quick replies from Richard Heiberger, Greg Show Bert Gunter. Might it make sense to create as.character.call as an alias for deparse? A few years ago, I wrote several functions like predict.fd as aliases for functions with less memorable names like eval.fd. Doing that made the fda package easier to use, at least for me ;-) Thanks again, Spencer On 5/7/2014 2:39 PM, Bert Gunter wrote: ... and str(quote(x$y)) language x$y as.list(quote(x$y)) [[1]] `$` [[2]] x [[3]] y ## may be instructive. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Wed, May 7, 2014 at 2:30 PM, Greg Snow 538...@gmail.com wrote: deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
On 5/8/2014 8:05 PM, Bert Gunter wrote: [1] x$y Spencer: Does deparse(substitute(x$y)) [1] x$y do what you want? No: The problem is methods dispatch. class(quote(x$y)) = 'call', but as.character(quote(x$y)) does NOT go to as.character.call. deparse(quote(x$y)) returns the answer I want, as Greg Snow noted earlier. However, it would be easier to remember if I could write as.character(quote(x$y)) and get the same thing. With as.character.call - function(x, ...)deparse(x, ...), as.character.call(quote(x$y)) returns x$y, as desired. However, the methods dispatch one might naively expect fails, as noted above. Thanks, Spencer Cheers, Bert -- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Thu, May 8, 2014 at 5:56 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: as.character.call seems not to work as an alias for deparse. Consider the following: xDy - quote(x$y) class(xDy) call as.character.call - function(x, ...)deparse(x, ...) as.character(xDy) [1] $ x y # fails str(xDy) # language x$y as.character.language - function(x, ...)language as.character(xDy) [1] $ x y Is it feasible to construct a method for as.character that works for objects of class call? Thanks, Spencer # Thanks for the quick replies from Richard Heiberger, Greg Show Bert Gunter. Might it make sense to create as.character.call as an alias for deparse? A few years ago, I wrote several functions like predict.fd as aliases for functions with less memorable names like eval.fd. Doing that made the fda package easier to use, at least for me ;-) Thanks again, Spencer On 5/7/2014 2:39 PM, Bert Gunter wrote: ... and str(quote(x$y)) language x$y as.list(quote(x$y)) [[1]] `$` [[2]] x [[3]] y ## may be instructive. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Wed, May 7, 2014 at 2:30 PM, Greg Snow 538...@gmail.com wrote: deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Spencer Graves, PE, PhD President and Chief Technology Officer Structure Inspection and Monitoring, Inc. 751 Emerson Ct. San José, CA 95126 ph: 408-655-4567 web: www.structuremonitoring.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] as.character(quote(x$y) ) = $ x y not x$y?
Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
deparse(quote(x$y)) [1] x$y On Wed, May 7, 2014 at 5:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
... and str(quote(x$y)) language x$y as.list(quote(x$y)) [[1]] `$` [[2]] x [[3]] y ## may be instructive. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Wed, May 7, 2014 at 2:30 PM, Greg Snow 538...@gmail.com wrote: deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] as.character(quote(x$y) ) = $ x y not x$y?
Thanks for the quick replies from Richard Heiberger, Greg Show Bert Gunter. Might it make sense to create as.character.call as an alias for deparse? A few years ago, I wrote several functions like predict.fd as aliases for functions with less memorable names like eval.fd. Doing that made the fda package easier to use, at least for me ;-) Thanks again, Spencer On 5/7/2014 2:39 PM, Bert Gunter wrote: ... and str(quote(x$y)) language x$y as.list(quote(x$y)) [[1]] `$` [[2]] x [[3]] y ## may be instructive. Cheers, Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 Data is not information. Information is not knowledge. And knowledge is certainly not wisdom. H. Gilbert Welch On Wed, May 7, 2014 at 2:30 PM, Greg Snow 538...@gmail.com wrote: deparse(quote(x$y)) [1] x$y It looks like deparse does what you want here. On Wed, May 7, 2014 at 3:23 PM, Spencer Graves spencer.gra...@structuremonitoring.com wrote: Hello, All: Is there a simple utility someplace to convert quote(x$y) to x$y? I ask, because as.character(quote(x$y)) is a character vector of length 3 = $ x y. I want to convert this to x$y for a diagnostic message. class(quote(x$y)) = call, which suggests I could write as.character.call to perform this function. However, before I do, I felt a need to ask for other thoughts on this. Thanks, Spencer -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
