Dear All,
The textplot() function in the wordcloud package seem to do a good job with
generating non-overlapping labels on a scatter plot.
But it throws "warnings" when I try to use the pos= parameter to
position the text labels relative to a given x-y point.
Here is a simple example:
x<-runif(100)
y<-runif(100)
text1<- rep('LAB', 100)
plot(x,y)
textplot(x,y, text1, new=F, show.lines=F,
pos=4)
There were 50 or more warnings (use warnings() to see the first
50)> warnings()
Warning messages:
1: In strwidth(words[i], cex = cex[i], ...) : "pos" is not a graphical
parameter
2: In strheight(words[i], cex = cex[i], ...) : "pos" is not a
graphical parameter
How can I pass the pos=parameter to text() without generating the warnings?
I am doubly puzzled by the warnings because in the graph that results from the
foregoing code,
The labels are to the right of the points, as 'pos=4' requests.
Thanks!
Fraser D. Neiman
Hi Fraser, "textplot" is fairly similar to the "thigmophobe.labels" function in plotrix. I think the problem is that when the user passes an explicit position for the labels with the default "new=TRUE" argument, the "pos" argument is passed to the "plot" function, causing the warning. If the "pos" argument was named rather than extracted from "...", this could be avoided. However, if you want to specify the position of the labels, you could probably use the "text" function. Jim On Sat, Mar 14, 2015 at 7:29 AM, Fraser D. Neiman <fneiman at monticello.org> wrote:> Dear All, > > The textplot() function in the wordcloud package seem to do a good job > with generating non-overlapping labels on a scatter plot. > But it throws "warnings" when I try to use the pos= parameter to position > the text labels relative to a given x-y point. > > Here is a simple example: > > x<-runif(100) > y<-runif(100) > text1<- rep('LAB', 100) > > plot(x,y) > textplot(x,y, text1, new=F, show.lines=F, > pos=4) > > There were 50 or more warnings (use warnings() to see the first 50) > > warnings() > Warning messages: > 1: In strwidth(words[i], cex = cex[i], ...) : "pos" is not a graphical > parameter > 2: In strheight(words[i], cex = cex[i], ...) : "pos" is not a graphical > parameter > > How can I pass the pos=parameter to text() without generating the warnings? > > I am doubly puzzled by the warnings because in the graph that results from > the foregoing code, > The labels are to the right of the points, as 'pos=4' requests. > > Thanks! > > Fraser D. Neiman > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. >[[alternative HTML version deleted]]
You should contact the package maintainer about this. The problem is that the
pos= argument is being passed to strwidth() and strheight() and those functions
do not know what to do with it. In the meantime:
suppressWarnings(textplot(x,y, text1, new=F, show.lines=F,
pos=4))
will eliminate the warnings.
-------------------------------------
David L Carlson
Department of Anthropology
Texas A&M University
College Station, TX 77840-4352
-----Original Message-----
From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Fraser D.
Neiman
Sent: Friday, March 13, 2015 3:29 PM
To: r-help at r-project.org
Subject: [R] textplot() in wordcloud package
Dear All,
The textplot() function in the wordcloud package seem to do a good job with
generating non-overlapping labels on a scatter plot.
But it throws "warnings" when I try to use the pos= parameter to
position the text labels relative to a given x-y point.
Here is a simple example:
x<-runif(100)
y<-runif(100)
text1<- rep('LAB', 100)
plot(x,y)
textplot(x,y, text1, new=F, show.lines=F,
pos=4)
There were 50 or more warnings (use warnings() to see the first
50)> warnings()
Warning messages:
1: In strwidth(words[i], cex = cex[i], ...) : "pos" is not a graphical
parameter
2: In strheight(words[i], cex = cex[i], ...) : "pos" is not a
graphical parameter
How can I pass the pos=parameter to text() without generating the warnings?
I am doubly puzzled by the warnings because in the graph that results from the
foregoing code,
The labels are to the right of the points, as 'pos=4' requests.
Thanks!
Fraser D. Neiman
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
Another possibility is to use pointLabel() in package maptools. For your example
library(maptools)
plot(x,y)
pointLabel(x, y, text1)
Advantages of pointLabel() are that it returns a list of the x and y coordinates
of the labels that you can tweak if necessary and, at least in your example, it
does a better job of avoiding labels being chopped at the plot margins.
-------------------------------------
David L Carlson
Department of Anthropology
Texas A&M University
College Station, TX 77840-4352
-----Original Message-----
From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of David L
Carlson
Sent: Monday, March 16, 2015 10:44 AM
To: Fraser D. Neiman; r-help at r-project.org
Subject: Re: [R] textplot() in wordcloud package
You should contact the package maintainer about this. The problem is that the
pos= argument is being passed to strwidth() and strheight() and those functions
do not know what to do with it. In the meantime:
suppressWarnings(textplot(x,y, text1, new=F, show.lines=F,
pos=4))
will eliminate the warnings.
-------------------------------------
David L Carlson
Department of Anthropology
Texas A&M University
College Station, TX 77840-4352
-----Original Message-----
From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Fraser D.
Neiman
Sent: Friday, March 13, 2015 3:29 PM
To: r-help at r-project.org
Subject: [R] textplot() in wordcloud package
Dear All,
The textplot() function in the wordcloud package seem to do a good job with
generating non-overlapping labels on a scatter plot.
But it throws "warnings" when I try to use the pos= parameter to
position the text labels relative to a given x-y point.
Here is a simple example:
x<-runif(100)
y<-runif(100)
text1<- rep('LAB', 100)
plot(x,y)
textplot(x,y, text1, new=F, show.lines=F,
pos=4)
There were 50 or more warnings (use warnings() to see the first
50)> warnings()
Warning messages:
1: In strwidth(words[i], cex = cex[i], ...) : "pos" is not a graphical
parameter
2: In strheight(words[i], cex = cex[i], ...) : "pos" is not a
graphical parameter
How can I pass the pos=parameter to text() without generating the warnings?
I am doubly puzzled by the warnings because in the graph that results from the
foregoing code,
The labels are to the right of the points, as 'pos=4' requests.
Thanks!
Fraser D. Neiman
______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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 at r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.