Re: [R] Can't get sample function from An Introduction to R to work
When you copied it into MS Word, did you Copy - paste special -
unformatted text? This trick sometimes might expose (or eliminate)
nonprinting characters or characters with special attributes that might
have created the problem.
spencer graves
David Groos wrote:
Thank you-all very much for your help, your responses and help has been
very encouraging. The following doesn't close the case but it tables
it...
First I copied Ken's code into my R Console and...it worked great!
That was baffling as it looked identical to mine.
I did not explicitly say earlier that the code I sent out I had copied
from the console, pasted into MS Word, changed font size, then pasted
it into the e-mail--in other words, that was a copy of one of the codes
that didn't work.
Anyway, I then copied the non-working, pasted it into Console,
expecting that it would say Error: syntax error upon pressing the
return key at the end of this line:
+ tst-(yb1-yb2)/sqrt(s*(1/n1+1/n2))
but it didn't! and the code worked this time, also!
I then went about doing what I could to replicate the error from before
and was as unsuccessful in doing that as I was in making it work,
earlier.
On Jul 15, 2005, at 4:43 PM, Peter Dalgaard wrote:
Bret Collier [EMAIL PROTECTED] writes:
David,
If below is exactly what you typed, check your code again, I think you
are missing a '}' after the last 2 parentheses.
That's not supposed to cause a syntax error, just another '+'.
(right! that's what I thought...)
I can copy and paste the code as written and not get an error:
twosam-function(y1, y2) {
+ n1-length(y1);n2 -length(y2)
+ yb1-mean(y1); yb2-mean(y2)
+ s1-var(y1);s2-var(y2)
+ s-((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2)
+ tst-(yb1-yb2)/sqrt(s*(1/n1+1/n2))
+ }
Perhaps this was the 1st time David got his typing right? The error is
of the sort you'd get if you had
s-((n1-1)*s1 + (n2-1)*s2/(n1+n2-2)
Interestingly enough, I did try this line when first I was trying to
make the code work and with just 1 ) at the end I didn't get the
error message, but then again I wasn't able to make the whole program
work, either.
In conclusion, I can't explain why it didn't first work time nor why I
couldn't replicate the error. I think I ought to e-mail the Mac R
folks about this.
Again, Thanks,
-David
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Re: [R] Can't get sample function from An Introduction to R to work
On Fri, 15 Jul 2005, David Groos wrote: Thank you-all very much for your help, your responses and help has been very encouraging. The following doesn't close the case but it tables it... First I copied Ken's code into my R Console and...it worked great! That was baffling as it looked identical to mine. I did not explicitly say earlier that the code I sent out I had copied from the console, pasted into MS Word, changed font size, then pasted it into the e-mail--in other words, that was a copy of one of the codes that didn't work. Mysterious syntax errors on OS X can result from copying and pasting into R. Files that look perfectly innocent can contain Windows line endings (\r\n) or en-dashes instead of hyphens. These might well be transparently fixed in the process of converting to email. If you actually typed into the R console then this won't explain it, of course. -thomas __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Can't get sample function from An Introduction to R to work
On Jul 16, 2005, at 9:58 AM, Thomas Lumley wrote: On Fri, 15 Jul 2005, David Groos wrote: Thank you-all very much for your help, your responses and help has been very encouraging. The following doesn't close the case but it tables it... First I copied Ken's code into my R Console and...it worked great! That was baffling as it looked identical to mine. I did not explicitly say earlier that the code I sent out I had copied from the console, pasted into MS Word, changed font size, then pasted it into the e-mail--in other words, that was a copy of one of the codes that didn't work. Mysterious syntax errors on OS X can result from copying and pasting into R. Files that look perfectly innocent can contain Windows line endings (\r\n) or en-dashes instead of hyphens. These might well be transparently fixed in the process of converting to email. I'll put this, as well as the copying/pasting as unformatted text as recommends Spencer, into my bag of tricks. If you actually typed into the R console then this won't explain it, of course. And indeed, I did type right into the R console, so the mystery remains... Thanks, David -thomas __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Can't get sample function from An Introduction to R to work
David,
If below is exactly what you typed, check your code again, I think you
are missing a '}' after the last 2 parentheses.
HTH,
Bret
David Groos [EMAIL PROTECTED] 7/15/2005 3:40:01 PM
I'm trying to figure out R, a piece at a time, hours at a time... I
was trying to copy the sample function in, An Introduction to R (for
version 2.1.0) by W. N. Venables, D. M. Smith, page 42. Section 10.1
Simple examples provides a sample function which I tried to duplicate
(I'm using Mac OS X 10.3.9, and R for Mac OS X Aqua GUI v1.11). The
following is what I typed and the last line is R's response when I hit
the return key after the penultimate line. I've re-checked and
re-typed the code many times to no avail. I wasn't able to find this
issue using search options, either. Any help is GREATLY appreciated!
twosam-function(y1, y2) {
+ n1-length(y1);n2 -length(y2)
+ yb1-mean(y1); yb2-mean(y2)
+ s1-var(y1);s2-var(y2)
+ s-((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2)
+ tst-(yb1-yb2)/sqrt(s*(1/n1+1/n2))
Error: syntax error
David
[[alternative text/enriched version deleted]]
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Re: [R] Can't get sample function from An Introduction to R to work
On Fri, 2005-07-15 at 15:40 -0500, David Groos wrote:
I'm trying to figure out R, a piece at a time, hours at a time... I
was trying to copy the sample function in, An Introduction to R (for
version 2.1.0) by W. N. Venables, D. M. Smith, page 42. Section 10.1
Simple examples provides a sample function which I tried to duplicate
(I'm using Mac OS X 10.3.9, and R for Mac OS X Aqua GUI v1.11). The
following is what I typed and the last line is R's response when I hit
the return key after the penultimate line. I've re-checked and
re-typed the code many times to no avail. I wasn't able to find this
issue using search options, either. Any help is GREATLY appreciated!
twosam-function(y1, y2) {
+ n1-length(y1);n2 -length(y2)
+ yb1-mean(y1); yb2-mean(y2)
+ s1-var(y1);s2-var(y2)
+ s-((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2)
+ tst-(yb1-yb2)/sqrt(s*(1/n1+1/n2))
Error: syntax error
David
The code as you have above (without the + on each line) works for me
both in ESS and in the R console under Linux. There should be another
+ on the next line, in anticipation of the remaining two lines:
tst
}
Try to copy and paste the following into the console as is:
twosam-function(y1, y2) {
n1 - length(y1);n2 - length(y2)
yb1 - mean(y1); yb2 - mean(y2)
s1 - var(y1);s2 - var(y2)
s - ((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2)
tst - (yb1-yb2)/sqrt(s*(1/n1+1/n2))
and see what happens. You should be left at a:
+
on a new line again.
It is possible that there is a bug in the Aqua GUI, but not using a Mac,
I cannot replicate it.
You might want to consider subscribing and posting to the R-SIG-Mac
e-mail list, which is focused on Mac users of R. More information is
here:
https://stat.ethz.ch/mailman/listinfo/r-sig-mac
HTH,
Marc Schwartz
P.S. Greetings from Eden Prairie
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Re: [R] Can't get sample function from An Introduction to R to work
Also, are you doing this with a version of R that will allow you to
keep your scripts in separate files and run them one line at a time?
Rgui allows this, and many people use different editors, e.g, XEmacs
with ESS (EMacs Speaks Statistics). Some editors (like ESS) help with
parentheses matching, which makes it easier to catch errors like this.
When that fails, I define the necessary variables and work through the
function line by line until I find the problem.
spencer graves
Bret Collier wrote:
David,
If below is exactly what you typed, check your code again, I think you
are missing a '}' after the last 2 parentheses.
HTH,
Bret
David Groos [EMAIL PROTECTED] 7/15/2005 3:40:01 PM
I'm trying to figure out R, a piece at a time, hours at a time... I
was trying to copy the sample function in, An Introduction to R (for
version 2.1.0) by W. N. Venables, D. M. Smith, page 42. Section 10.1
Simple examples provides a sample function which I tried to duplicate
(I'm using Mac OS X 10.3.9, and R for Mac OS X Aqua GUI v1.11). The
following is what I typed and the last line is R's response when I hit
the return key after the penultimate line. I've re-checked and
re-typed the code many times to no avail. I wasn't able to find this
issue using search options, either. Any help is GREATLY appreciated!
twosam-function(y1, y2) {
+ n1-length(y1);n2 -length(y2)
+ yb1-mean(y1); yb2-mean(y2)
+ s1-var(y1);s2-var(y2)
+ s-((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2)
+ tst-(yb1-yb2)/sqrt(s*(1/n1+1/n2))
Error: syntax error
David
[[alternative text/enriched version deleted]]
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__
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PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
--
Spencer Graves, PhD
Senior Development Engineer
PDF Solutions, Inc.
333 West San Carlos Street Suite 700
San Jose, CA 95110, USA
[EMAIL PROTECTED]
www.pdf.com http://www.pdf.com
Tel: 408-938-4420
Fax: 408-280-7915
__
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Re: [R] Can't get sample function from An Introduction to R to work
Bret Collier [EMAIL PROTECTED] writes:
David,
If below is exactly what you typed, check your code again, I think you
are missing a '}' after the last 2 parentheses.
That's not supposed to cause a syntax error, just another '+'.
I can copy and paste the code as written and not get an error:
twosam-function(y1, y2) {
+ n1-length(y1);n2 -length(y2)
+ yb1-mean(y1); yb2-mean(y2)
+ s1-var(y1);s2-var(y2)
+ s-((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2)
+ tst-(yb1-yb2)/sqrt(s*(1/n1+1/n2))
+ }
Perhaps this was the 1st time David got his typing right? The error is
of the sort you'd get if you had
s-((n1-1)*s1 + (n2-1)*s2/(n1+n2-2)
or
tst-(yb1-yb2)/sqrt(s*1/n1+1/n2))
HTH,
Bret
David Groos [EMAIL PROTECTED] 7/15/2005 3:40:01 PM
I'm trying to figure out R, a piece at a time, hours at a time... I
was trying to copy the sample function in, An Introduction to R (for
version 2.1.0) by W. N. Venables, D. M. Smith, page 42. Section 10.1
Simple examples provides a sample function which I tried to duplicate
(I'm using Mac OS X 10.3.9, and R for Mac OS X Aqua GUI v1.11). The
following is what I typed and the last line is R's response when I hit
the return key after the penultimate line. I've re-checked and
re-typed the code many times to no avail. I wasn't able to find this
issue using search options, either. Any help is GREATLY appreciated!
twosam-function(y1, y2) {
+ n1-length(y1);n2 -length(y2)
+ yb1-mean(y1); yb2-mean(y2)
+ s1-var(y1);s2-var(y2)
+ s-((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2)
+ tst-(yb1-yb2)/sqrt(s*(1/n1+1/n2))
Error: syntax error
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Re: [R] Can't get sample function from An Introduction to R to work
Thank you-all very much for your help, your responses and help has been
very encouraging. The following doesn't close the case but it tables
it...
First I copied Ken's code into my R Console and...it worked great!
That was baffling as it looked identical to mine.
I did not explicitly say earlier that the code I sent out I had copied
from the console, pasted into MS Word, changed font size, then pasted
it into the e-mail--in other words, that was a copy of one of the codes
that didn't work.
Anyway, I then copied the non-working, pasted it into Console,
expecting that it would say Error: syntax error upon pressing the
return key at the end of this line:
+ tst-(yb1-yb2)/sqrt(s*(1/n1+1/n2))
but it didn't! and the code worked this time, also!
I then went about doing what I could to replicate the error from before
and was as unsuccessful in doing that as I was in making it work,
earlier.
On Jul 15, 2005, at 4:43 PM, Peter Dalgaard wrote:
Bret Collier [EMAIL PROTECTED] writes:
David,
If below is exactly what you typed, check your code again, I think you
are missing a '}' after the last 2 parentheses.
That's not supposed to cause a syntax error, just another '+'.
(right! that's what I thought...)
I can copy and paste the code as written and not get an error:
twosam-function(y1, y2) {
+ n1-length(y1);n2 -length(y2)
+ yb1-mean(y1); yb2-mean(y2)
+ s1-var(y1);s2-var(y2)
+ s-((n1-1)*s1 + (n2-1)*s2)/(n1+n2-2)
+ tst-(yb1-yb2)/sqrt(s*(1/n1+1/n2))
+ }
Perhaps this was the 1st time David got his typing right? The error is
of the sort you'd get if you had
s-((n1-1)*s1 + (n2-1)*s2/(n1+n2-2)
Interestingly enough, I did try this line when first I was trying to
make the code work and with just 1 ) at the end I didn't get the
error message, but then again I wasn't able to make the whole program
work, either.
In conclusion, I can't explain why it didn't first work time nor why I
couldn't replicate the error. I think I ought to e-mail the Mac R
folks about this.
Again, Thanks,
-David
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