[R] puzzled with plotmath
Dear all,
I'm puzzled with matrix indices in plotmath.
I'm plotting matrix elements: Z [i, i], and I'd like to put that as label. I'll
describe what I want and what I get in LaTeX-notation.
The output should look like Z_{i, i}, and my first try was
plot (1, 1, ylab = expression (Z[i, i]))
That, however, gives me Z_{i} (no comma, no second i) although the expression
looks OK to me:
a - expression (Z[i, i])
a [[1]]
Z[i, i]
str (as.list (a [[1]]))
List of 4
$ : symbol [
$ : symbol Z
$ : symbol i
$ : symbol i
I'm able to tweak the ouput looking as I want:
plot (1, 1, ylab = expression (Z[i][, ][i]))
which is, however, logically very far from what I want to express.
What am I missing?
I'm almost sure this has been discussed before, but I can't find it: can anyone
point me to good search terms? Is it possible to search for the terms being
close to each other in RSiteSearch and/or RSeek? I get lots of introductory
documents as they point to plotmath and discuss matrices...
Thanks a lot for your help,
Claudia
--
Claudia Beleites
Dipartimento dei Materiali e delle Risorse Naturali
Università degli Studi di Trieste
Via Alfonso Valerio 6/a
I-34127 Trieste
phone: +39 0 40 5 58-37 68
email: cbelei...@units.it
__
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] puzzled with plotmath II
sorry, I forgot my sessionInfo: please see below.
Original Message
Subject: puzzled with plotmath
Date: Thu, 20 Jan 2011 12:48:18 +0100
From: Claudia Beleites cbelei...@units.it
To: R Help r-help@r-project.org
Dear all,
I'm puzzled with matrix indices in plotmath.
I'm plotting matrix elements: Z [i, i], and I'd like to put that as label. I'll
describe what I want and what I get in LaTeX-notation.
The output should look like Z_{i, i}, and my first try was
plot (1, 1, ylab = expression (Z[i, i]))
That, however, gives me Z_{i} (no comma, no second i) although the expression
looks OK to me:
a - expression (Z[i, i])
a [[1]]
Z[i, i]
str (as.list (a [[1]]))
List of 4
$ : symbol [
$ : symbol Z
$ : symbol i
$ : symbol i
I'm able to tweak the ouput looking as I want:
plot (1, 1, ylab = expression (Z[i][, ][i]))
which is, however, logically very far from what I want to express.
What am I missing?
I'm almost sure this has been discussed before, but I can't find it: can anyone
point me to good search terms? Is it possible to search for the terms being
close to each other in RSiteSearch and/or RSeek? I get lots of introductory
documents as they point to plotmath and discuss matrices...
Thanks a lot for your help,
Claudia
sessionInfo ()
R version 2.12.1 (2010-12-16)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.utf8 LC_NUMERIC=C LC_TIME=en_US.utf8
[4] LC_COLLATE=en_US.utf8 LC_MONETARY=C LC_MESSAGES=en_US.utf8
[7] LC_PAPER=en_US.utf8 LC_NAME=C LC_ADDRESS=C
[10] LC_TELEPHONE=CLC_MEASUREMENT=en_US.utf8 LC_IDENTIFICATION=C
attached base packages:
[1] grid stats graphics grDevices utils datasets methods base
other attached packages:
[1] ggplot2_0.8.8 proto_0.3-8 reshape_0.8.3 plyr_1.2.1
loaded via a namespace (and not attached):
[1] digest_0.4.2 tools_2.12.1
--
Claudia Beleites
Dipartimento dei Materiali e delle Risorse Naturali
Università degli Studi di Trieste
Via Alfonso Valerio 6/a
I-34127 Trieste
phone: +39 0 40 5 58-37 68
email: cbelei...@units.it
__
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] puzzled with plotmath II
Try
plot (1, 1, ylab = expression (Z[list(i,i)]))
Hth -- Gerrit
Original Message
Subject: puzzled with plotmath
Date: Thu, 20 Jan 2011 12:48:18 +0100
From: Claudia Beleites cbelei...@units.it
To: R Help r-help@r-project.org
Dear all,
I'm puzzled with matrix indices in plotmath.
I'm plotting matrix elements: Z [i, i], and I'd like to put that as label.
I'll
describe what I want and what I get in LaTeX-notation.
The output should look like Z_{i, i}, and my first try was
plot (1, 1, ylab = expression (Z[i, i]))
That, however, gives me Z_{i} (no comma, no second i) although the expression
looks OK to me:
a - expression (Z[i, i])
a [[1]]
Z[i, i]
str (as.list (a [[1]]))
List of 4
$ : symbol [
$ : symbol Z
$ : symbol i
$ : symbol i
I'm able to tweak the ouput looking as I want:
plot (1, 1, ylab = expression (Z[i][, ][i]))
which is, however, logically very far from what I want to express.
What am I missing?
I'm almost sure this has been discussed before, but I can't find it: can
anyone
point me to good search terms? Is it possible to search for the terms being
close to each other in RSiteSearch and/or RSeek? I get lots of introductory
documents as they point to plotmath and discuss matrices...
Thanks a lot for your help,
Claudia
sessionInfo ()
R version 2.12.1 (2010-12-16)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.utf8 LC_NUMERIC=C LC_TIME=en_US.utf8
[4] LC_COLLATE=en_US.utf8 LC_MONETARY=C
LC_MESSAGES=en_US.utf8
[7] LC_PAPER=en_US.utf8 LC_NAME=C LC_ADDRESS=C
[10] LC_TELEPHONE=CLC_MEASUREMENT=en_US.utf8 LC_IDENTIFICATION=C
attached base packages:
[1] grid stats graphics grDevices utils datasets methods
base
other attached packages:
[1] ggplot2_0.8.8 proto_0.3-8 reshape_0.8.3 plyr_1.2.1
loaded via a namespace (and not attached):
[1] digest_0.4.2 tools_2.12.1
--
Claudia Beleites
Dipartimento dei Materiali e delle Risorse Naturali
Università degli Studi di Trieste
Via Alfonso Valerio 6/a
I-34127 Trieste
phone: +39 0 40 5 58-37 68
email: cbelei...@units.it
__
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] puzzled with plotmath for matrix indices
Gerrit, thanks viele Grüße nach Oberhessen :-) plot (1, 1, ylab = expression (Z[list(i,i)])) though that cannot be evaluated, either (due to [ not knowing what to do with an index list) for future searches: probably the easiest cheat is, of course, plot (1, 1, ylab = expression (Z[i, i])) Anyways, I put the how to into the R Wiki page on plotmath. And I suggest that it should be mentioned in the plotmath help = email to r-devel. Claudia -- Claudia Beleites Dipartimento dei Materiali e delle Risorse Naturali Università degli Studi di Trieste Via Alfonso Valerio 6/a I-34127 Trieste phone: +39 0 40 5 58-37 68 email: cbelei...@units.it __ 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] puzzled with plotmath for matrix indices
On 20.01.2011 14:08, Claudia Beleites wrote: Gerrit, thanks viele Grüße nach Oberhessen :-) plot (1, 1, ylab = expression (Z[list(i,i)])) though that cannot be evaluated, either (due to [ not knowing what to do with an index list) Works for me with a recent R version. for future searches: probably the easiest cheat is, of course, plot (1, 1, ylab = expression (Z[i, i])) which is less convenient since you could not replace i by a dynamically calculated number, for example. Best, Uwe Ligges Anyways, I put the how to into the R Wiki page on plotmath. And I suggest that it should be mentioned in the plotmath help = email to r-devel. Claudia __ 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] puzzled with plotmath II
On 2011-01-20 04:09, Gerrit Eichner wrote:
Try
plot (1, 1, ylab = expression (Z[list(i,i)]))
Hth -- Gerrit
Original Message
Subject: puzzled with plotmath
Date: Thu, 20 Jan 2011 12:48:18 +0100
From: Claudia Beleitescbelei...@units.it
To: R Helpr-help@r-project.org
Dear all,
I'm puzzled with matrix indices in plotmath.
I'm plotting matrix elements: Z [i, i], and I'd like to put that as label.
I'll
describe what I want and what I get in LaTeX-notation.
The output should look like Z_{i, i}, and my first try was
plot (1, 1, ylab = expression (Z[i, i]))
That, however, gives me Z_{i} (no comma, no second i) although the expression
looks OK to me:
a- expression (Z[i, i])
a [[1]]
Z[i, i]
str (as.list (a [[1]]))
List of 4
$ : symbol [
$ : symbol Z
$ : symbol i
$ : symbol i
I'm able to tweak the ouput looking as I want:
plot (1, 1, ylab = expression (Z[i][, ][i]))
which is, however, logically very far from what I want to express.
What am I missing?
I'm almost sure this has been discussed before, but I can't find it: can
anyone
point me to good search terms? Is it possible to search for the terms being
close to each other in RSiteSearch and/or RSeek? I get lots of introductory
documents as they point to plotmath and discuss matrices...
[snip]
Claudia,
Look for 'comma-separated list' on the help page!!
It will lead you directly to Gerrit's solution.
I would put a space in front of the first 'i' with
expression(Z[list(~i,i)])
or you can build it all up in pieces:
expression(Z[~i*,~i])
Peter Ehlers
__
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] puzzled with plotmath for matrix indices
On 01/20/2011 02:11 PM, Uwe Ligges wrote: On 20.01.2011 14:08, Claudia Beleites wrote: Gerrit, thanks viele Grüße nach Oberhessen :-) plot (1, 1, ylab = expression (Z[list(i,i)])) though that cannot be evaluated, either (due to [ not knowing what to do with an index list) Works for me with a recent R version. Sorry, my comment wasn't clear: sure it produces the desired output, what I meant is: Z [,1] [,2] [1,]13 [2,]24 i - 2 eval (expression (Z[list(i,i)])) Error in Z[list(i, i)] : invalid subscript type 'list' whereas: eval (expression (Z[i,i])) [1] 4 (and of course all the text-based solutions also lack the beauty of the expression actually meaning in R what the output looks like) for future searches: probably the easiest cheat is, of course, plot (1, 1, ylab = expression (Z[i, i])) which is less convenient since you could not replace i by a dynamically calculated number, for example. good point. Thanks, I learn a lot here :-) Claudia -- Claudia Beleites Dipartimento dei Materiali e delle Risorse Naturali Università degli Studi di Trieste Via Alfonso Valerio 6/a I-34127 Trieste phone: +39 0 40 5 58-37 68 email: cbelei...@units.it __ 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] puzzled with plotmath for matrix indices
Claudia, Mittelhessen! ;-) thanks viele Grüße nach Oberhessen :-) plot (1, 1, ylab = expression (Z[list(i,i)])) though that cannot be evaluated, either (due to [ not knowing what to do with an index list) Something is missing; this last sentence of yours appears to be not complete, does it? Regarding Uwe's remark and Peter's nice aesthetic suggestion: plot( 1, 1, xlab = substitute( Z[list(~i, j)], list( i = 1, j = 2))) should solve both problems. This does work even in R as old as 2.7.1 (and, of course, for a more recent version as Uwe already stated). Best regards / Beste Grüße -- Gerrit__ 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] puzzled with plotmath II
Peter, Look for 'comma-separated list' on the help page!! Yes, seeing the solution I also understand why list is the solution. The special meaning of list () in plotmath was only in my passive vocabulary - and after this discussion I think it is upgraded to active ;-) I have to admit that my coming from matlab (as opposed to lisp) still catches me once in a while: though I was aware that I would somehow need to change the tree of the expression, I went astray because c() still feels to me the more basic function to put things together than list (). A second aspect that put me a bit off the track is that both create expressions that do have a meaning but don't mean in R what I want to express: Z [c(a, b)] is meaningful, but not the same as Z [a, b] Z [list (a, b)] is syntactically correct, but `[.matrix` doesn't accept lists for parameter i) Anyways, thanks a lot for the patience everyone: problem is solved, solutions (including bquote) are to be found in the Wiki, and instead of creating more fuss by unclear emails I'll fetch a coffee before I go on plotting my confusion matrix elements... Claudia -- Claudia Beleites Dipartimento dei Materiali e delle Risorse Naturali Università degli Studi di Trieste Via Alfonso Valerio 6/a I-34127 Trieste phone: +39 0 40 5 58-37 68 email: cbelei...@units.it __ 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] puzzled with plotmath II
expression(Z[i][i])
also works as expected, though without the comma.
S Ellison
Gerrit Eichner gerrit.eich...@math.uni-giessen.de 01/20/11 12:09 PM
Try
plot (1, 1, ylab = expression (Z[list(i,i)]))
Hth -- Gerrit
Original Message
Subject: puzzled with plotmath
Date: Thu, 20 Jan 2011 12:48:18 +0100
From: Claudia Beleites cbelei...@units.it
To: R Help r-help@r-project.org
Dear all,
I'm puzzled with matrix indices in plotmath.
I'm plotting matrix elements: Z [i, i], and I'd like to put that as label.
I'll
describe what I want and what I get in LaTeX-notation.
The output should look like Z_{i, i}, and my first try was
plot (1, 1, ylab = expression (Z[i, i]))
That, however, gives me Z_{i} (no comma, no second i) although the expression
looks OK to me:
a - expression (Z[i, i])
a [[1]]
Z[i, i]
str (as.list (a [[1]]))
List of 4
$ : symbol [
$ : symbol Z
$ : symbol i
$ : symbol i
I'm able to tweak the ouput looking as I want:
plot (1, 1, ylab = expression (Z[i][, ][i]))
which is, however, logically very far from what I want to express.
What am I missing?
I'm almost sure this has been discussed before, but I can't find it: can
anyone
point me to good search terms? Is it possible to search for the terms being
close to each other in RSiteSearch and/or RSeek? I get lots of introductory
documents as they point to plotmath and discuss matrices...
Thanks a lot for your help,
Claudia
sessionInfo ()
R version 2.12.1 (2010-12-16)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.utf8 LC_NUMERIC=C LC_TIME=en_US.utf8
[4] LC_COLLATE=en_US.utf8 LC_MONETARY=C
LC_MESSAGES=en_US.utf8
[7] LC_PAPER=en_US.utf8 LC_NAME=C LC_ADDRESS=C
[10] LC_TELEPHONE=CLC_MEASUREMENT=en_US.utf8 LC_IDENTIFICATION=C
attached base packages:
[1] grid stats graphics grDevices utils datasets methods
base
other attached packages:
[1] ggplot2_0.8.8 proto_0.3-8 reshape_0.8.3 plyr_1.2.1
loaded via a namespace (and not attached):
[1] digest_0.4.2 tools_2.12.1
--
Claudia Beleites
Dipartimento dei Materiali e delle Risorse Naturali
Università degli Studi di Trieste
Via Alfonso Valerio 6/a
I-34127 Trieste
phone: +39 0 40 5 58-37 68
email: cbelei...@units.it
__
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.
***
This email and any attachments are confidential. Any use...{{dropped:8}}
__
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.
