Displaying 20 results from an estimated 6000 matches similar to: "Documentation General Comments"
2008 Apr 21
1
Use of recordPlot
I am trying to save plots that I create using calls to windows() folowed
by multiple calls to plot to place several plots on a page. I want to
store the plots as variables to be able to recall them later.
The documentation states:
"Recorded plot histories are of class "SavedPlots". They have a print
method, and a subset method.
As the individual plots are of class
2018 Apr 02
3
recordPlot/replayPlot not working with saveRDS/readRDS
The documentation for recordPlot says the following:
> As of R 3.3.0, it is possible (again) to replay a plot from another R session using, for example, saveRDS and readRDS.
However, I haven't been able to save and restore a plot displaylist
and have it work within the same R session, using R 3.4.3 or 3.3.3.
Here's an example:
# Save displaylist for a simple plot
2018 Apr 03
1
[FORGED] recordPlot/replayPlot not working with saveRDS/readRDS
>>>>> Paul Murrell <paul at stat.auckland.ac.nz>
>>>>> on Tue, 3 Apr 2018 09:41:56 +1200 writes:
> Hi What you are doing "wrong" is loading a recordedplot
> into the same session that it was created in. The
> saveRDS()/readRDS() works if you save in one R session and
> then read in a different R session. The
2013 Sep 13
1
inconsistency/bug in recordPlot/replayPlot
Hey all,
I've run accross what seems to be a bug in the recordPlot/replayPlot
functionality (or at least the lack of a feature which seems pretty
reasonable to expect to be there)
When drawing to a file-based graphics device (I tested with png()), the
file resulting from calling replayPlot on a recordedplot object does not
contain an identical image to that captured by the same graphics
2013 Sep 24
1
recordPlot() on non-interactive graphics device?
Hi.
Q. Is there a way to record a plot using grDevices::recordPlot()
without opening an interactive (=visible GUI window) graphics device
(not even for a flash of a second)?
Related: help("recordPlot", package="grDevices") says:
"These functions record and replay the displaylist of the current
graphics device."
Is the intention that recordPlot() should be able to
2004 Nov 30
1
RecordPlot
I want to do a zoom with recordPlot(). I have problems with lists.
(R-2.0.1 patched 2004-11-30 , various linux). I have problems
with RecordPlot class structure.
> plot(1:10)
> saveP <- recordPlot()
> dev.off()
> sx <- saveP[[1]][[2]][[2]]
> saveP[[1]][[2]][[2]] <- sx
Error in "[[<-"(`*tmp*`, 1, value = list(list(
.Primitive("plot.new")),
2017 Feb 20
3
Replaying a recorded plot (mixed base and grid) from pdf() in cairo_pdf() crashes R
Hi,
I wonder if this is expected or I'm doing a wrong thing.
pdf()
dev.control('enable')
library("grid")
plot(1)
grid.text("A")
res = recordPlot()
dev.off()
cairo_pdf()
replayPlot(res)
dev.off()
*** caught segfault ***
address 0x4, cause 'memory not mapped'
> sessionInfo()
R version 3.3.2 (2016-10-31)
Platform: x86_64-apple-darwin13.4.0 (64-bit)
2017 Feb 20
2
[FORGED] Re: Replaying a recorded plot (mixed base and grid) from pdf() in cairo_pdf() crashes R
Hi
This appears to be happening (at least) because cairo_pdf() delays
initialising a Cairo surface until BM_NewPage(), rather than
initiliasing a Cairo surface in BM_Open(), and replayPlot() triggers
some activity (set clip region) on the device BEFORE a new page is
started (so the pointer to the Cairo surface is null, so BOOM).
Not sure yet whether to blame replayPlot() for not starting
2002 Nov 01
1
recordPlot in 1.5.x, replayPlot in 1.6.0 problem
I have plots that were stored using recordPlot() in a fairly recent
but pre-1.6.0 version of R that will not replayPlot() in R 1.6.0. The
error message is
Error in replayPlot(x) : invalid hex digit in color or lty
The plots were stored in June (2002-6-14), each as an element of a
list named 'rpl'. The version of R that was current then is what I
used. At that time I was able to
2012 Jan 09
1
serializing recordedplot object
I use recordPlot() to save plots to disk that I render later to a
variety of formats. This works fine for base R plots and ggplot2
plots, and also used to work for lattice plots. However somewhere in
version 2.14 things stopped working for lattice plots. Here is an
example:
library(lattice);
histogram(rnorm(100));
x <- recordPlot();
saveRDS(x, "myplot.rds");
y <-
2014 May 01
2
Request to Replace Recordplot ,, replayplot
Record plot which stores a plot to an internal R data structure and Replay
Plot which
replays the plot enables one to keep plots around and use them accross
sessions at least until version 3. If you cannot restore old plots and
treat them as data and save accross sessions, there is little reason for
recordPlot. Either R needs to dispense with internal formats entirelly, a
bad move in my opinion
2023 Oct 15
2
Plot to a device and examine the plot?
On 15/10/2023 12:05 p.m., Shu Fai Cheung wrote:
> Let me clarify my question:
>
> plot.new()
> polygon(c(.5, .5, .75, .8), c(.25, .3, .4, .5))
>
> If the device is an on-screen device, can I check whether a particular area
> has anything drawn on it, or, to be precise, whether the color of a
> particular area has all pixels equal to the background color. That is, if
>
2010 Feb 23
1
How to change a venn command into a named object that can be plotted like a lattice object
Hello,
I am plotting data as a venn diagram but would like to be able to control how it is plotted like a lattice object.
Right now, it plots right away. I would like to name it and then plot at will.
I thought to convert the whole thing to a PostScript file then get it back into R via grImport, but surely (please!) there must be a less roundabout way to do this.
Any help is appreciated.
Here
2004 Sep 01
1
Advice on good programming practice, lexical scope
In "An Introduction to R" (See R help menu), there is an example of a function 'open.account' that makes use of the lexical scope in R.
I have a set of functions that can be used to output R tables and graphics into a single report document. (I am aware that several tools can do this already).
While reorganizing my code, I realize that I can collect my functions in a list, in
2000 Jun 22
1
R 1.1 congrat; undocumented behaviour of recordPlot
Hello,
first, I'd like to congratulate the core team to the new R version 1.1. I
think it's a great update, with glimpses into an even greater future
(tcltk!).
While playing around with the new functions (on Win 95), I found the
following:
As the documentation states, when I generate a plot and save it with
recordPlot, I can regenerate it by printing the variable:
> plot(1:10)
>
2018 Apr 02
0
[FORGED] recordPlot/replayPlot not working with saveRDS/readRDS
Hi
What you are doing "wrong" is loading a recordedplot into the same
session that it was created in. The saveRDS()/readRDS() works if you
save in one R session and then read in a different R session. The
assumption is that if you are still in the same session that created the
recordedplot you still have the recordedplot (e.g., you can just do
replayPlot(r) instead of
2023 Oct 15
1
Plot to a device and examine the plot?
Hi
You could also look at dev.capture(), depending on which screen device
you are using.
Paul
On 16/10/23 05:24, Duncan Murdoch wrote:
> On 15/10/2023 12:05 p.m., Shu Fai Cheung wrote:
> > Let me clarify my question:
> >
> > plot.new()
> > polygon(c(.5, .5, .75, .8), c(.25, .3, .4, .5))
> >
> > If the device is an on-screen device, can I check
2001 Jun 20
0
recordPlot usage: add snaps to a list.
I have trouble understanding the R list object and how to add objects
and get them out. I''m trying to collect snapshots with recordPlot and
replay them.
Got great help from everybody here yesterday on my histogram function,
works fine to make the pictures:
histomatic <- function (s1,s2,s3,var){
if (is.numeric (s2[[var]])) {
par(mfrow=c(3,1));
rz <- range(s1[[var]],
2003 Aug 26
3
Exporting R graphs
Hi,
I have been a happy user of R for windows for more than a year, however,
recently, I started using linux as my operating system and now I have
practically switched completely. Of course, I still use R with linux,
however, certain nice features of R in windows seem to be missing or
hidden. I need help in basically two points:
1. In windows, I could copy the contents of a window graphic's
2010 Jun 09
2
"Graphics history" in UNIX
Hello. First post, please excuse lack of experience.
I recently switched from MS-Win to Kubuntu and find it rather difficult
to recover Cran-R ease of use.
The "Graphics history" facility available under Windows was, for me,
extremely useful.
From Murrell's 2005 book (see citation below) I understand that no such
facility is available under non-Windows systems.
In R-help