similar to: determine size (width and height) of a graphics file via R - how?

Displaying 20 results from an estimated 1000 matches similar to: "determine size (width and height) of a graphics file via R - how?"

2017 Feb 02
2
net ads and wbinfo are painfully slow -- but they work
On Tue, Jan 31, 2017 at 2:45 PM, Rowland Penny via samba <samba at lists.samba.org> wrote: >> /etc/resolv.conf: >> root at nickel:~ # cat /etc/resolv.conf >> nameserver 192.168.11.5 >> nameserver 192.168.1.4 >> domain mydomain.local >> > > I take it at least one of the above nameservers is the AD DC, is the > other another AD DC ? If it isn't,
2011 Feb 25
4
salidas en Power Point
Hola tengo q hacer un trabajo, donde me piden q todas las salidas q haga sean en Power Point (graficos, tablas, etc). Para eso habia empezado a leer algo del paquete R2PPT, pero la verdad es q hay cosas q no entiendo de este paquete. Queria saber si alguien estuvo trabajando con el y obtuvo buenos resultados o si han usado otro paquete para hacerlo. Por ultimo una pregunta: desde Sweave se
2006 Jun 07
0
How to determine width and height of FXImageView?
On Wed, 07 Jun 2006 16:38:43 +0200, "Axel Etzold" <AEtzold at gmx.de> wrote : > In one field of an FX4Splitter, I want to display a PNG > image. > I know how to do this (basically) from the imageviewer.rb > file. > But the image I display needs to be generated first > (by Gnuplot ... no problem to output PNG from there, > except one: to set the size : I
2019 Mar 18
4
Possibly broken system2 env-option
Hey all, what is wrong with this command: system2("echo", env = c(VAR = "Hello World"), args = c("$VAR")) I am a bit confused, as help("system2") writes about the env option: > character vector of name=value strings to set environment variables. Is this option buggy, or am I using it just wrong? Thanks for your help Henning
2009 Jun 08
3
using regular expressions to retrieve a digit-digit-dot structure from a string
Hi, i need to recognize itemization structures in strings which follow the format: "digit-digit-dot" like e.g. 1. 2. 19. 211. Given the string " This happened in the 21. century." (the dot behind 21 is used in German instead of 21st) I want know where the dots are but I do not want the 21.-dot to be returned as well. I am not good at regular expressions. How
2010 Feb 14
3
evaluate variable within expression - how?
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2019 Mar 19
2
Possibly broken system2 env-option
On Tue, Mar 19, 2019 at 9:59 AM peter dalgaard <pdalgd at gmail.com> wrote: [...] > What you need is something like (NB: single quotes!) > > system2("sh", env = c("VAR='Hello World'"), args = c("-c 'echo $VAR'")) > Hello World Just out of curiosity, do you think it is possible to make this portable, assuming sh is available? On
2003 Apr 11
2
Making logos...
Hi! I'm trying to create a custom logo for syslinux but keep bumping my head on the conversion to LSS16. The sample syslogo.png works fine so I decided to start with a known quantity by loading it into the Gimp. I cleared the canvas, color filled a blue background (0x000033) placed some yellow letters on the blue (0xffff00) and saved the file back out with the default compression. The
2010 Jan 01
2
changing a list element's name during execution in lapply - possible?
Happy New Year, all! I want to do calculations on each element of a list l, but i want the returned list element to be named differently after the calculation. Is it possible to do the renaming somehow within the lapply call? l <- list(a=NA, b=NA) lapply(l, function(x) {names(x) <- "new name"; return(x) }) This does not work, any ideas? TIA
2008 Dec 29
4
Merge or combine data frames with missing columns
Hi R-experts, suppose I have a list with containing data frame elements: [[1]] (Intercept) y1 y2 y3 y4 -6.64 0.761 0.383 0.775 0.163 [[2]] (Intercept) y2 y3 -3.858 0.854 0.834 Now I want to put them into ONE dataframe like this: (Intercept) y1
2018 Sep 14
2
Bug when calling system/system2 (and request for Bugzilla account)
I hope it's not too specific in my setup... I've tried with system2 added on the first line, so: Example.R: system2('ls', timeout=5) cat('Start non-interruptable functions\n') sample_a <- sample(1:1e7) sample_b <- sample(1:2e7) matching <- match(sample_a, sample_b) cat('Finished\n') Sys.sleep(10) And in terminal/bash: R --vanilla
2009 Jul 07
3
Dump plots to powerpoint?
Hi, Is it possible to dump a series of plots directly into a powerpoint presentation (as is possible in Splus)? Thank you, Thomas [[alternative HTML version deleted]]
2016 Aug 09
4
ssh & ksh question
I need to run a report, source file on system 1, on system 2. I'd like to do this in one script, not have a second script to run it. Now cat script | ssh system2 works fine. But no matter what I've tried, it gags on ssh system2 <<EOF blah, blah EOF. Mostly, I have a multiline awk script in the script, with \ at the end of each line... *but* I think it's seeing "\n" as
2009 Dec 02
2
Reordering the results from table(cut()) by break argument
I have a vector and need to count how many data points fall inside each bin: dat <- rnorm(100) breaks <- -3:3 table((cut(dat, breaks))) (-3,-2] (-2,-1] (-1,0] (0,1] (1,2] (2,3] 3 13 42 30 12 0 if I reverse the breaks vector, the results remains the same: breaks <- rev(breaks) table((cut(dat, breaks))) (-3,-2] (-2,-1] (-1,0] (0,1] (1,2]
2011 Apr 25
4
blank space escape sequence in R?
Is there a blank space escape sequence in R, i.e. something like \sp etc. to produce a blank space? TIA Mark ??????????????????????????????????????? Mark Heckmann Blog: www.markheckmann.de R-Blog: http://ryouready.wordpress.com
2008 Dec 16
3
Check if data frame column is numeric
Hi R-users, I want to apply a function to each column of a data frame that is numeric. Thus I tried to check it for each column first: > apply(df, 2, function(x) is.numeric(x)) A60 A64 A66a A67 A71 A75a A80 A85 A91 A95 A96 A97 A98 A99 FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
2018 Sep 14
3
Bug when calling system/system2 (and request for Bugzilla account)
Hi all, I found some strange behaviour, which I think is a bug. Could someone make an account for me on Bugzilla or pass on my report? The problem: When pressing Ctrl-C when a file is sourced in R, run from Terminal (macOS), sometimes the entire session is ended right away, while I just want to stop the script. This is the case when I press Ctrl-C while some functions are running that don?t
2009 Dec 27
2
RGtk2 / gWidgets - addHandlerClicked Problem
In The following code, the table handler is executed twice when the button is pressed (from the 2nd pressing on). I want it to be executed only once. Does someone know, why this happens and how I can change it? library(gWidgets) w <- gwindow() b <- gbutton("press", cont=w) tbl <- gtable(1:10, cont=w) addhandlerclicked(b, handler=function(h, ...){
2018 Jan 26
2
utils::install.packages with quiet=TRUE fails for source packages on Windows
Hi, Installing a source package on Windows using utils::install.packages() with quiet=TRUE fails, while it works with the default quiet = FALSE. The problem seems to be caused by the fact that when quiet = TRUE, stdout and stderr are set to FALSE when calling "R CMD INSTALL" with base::system2() here:
2012 Mar 08
3
"figure margins too large" in RGtk2 drawing area as cairo device - why?
When using a gtkDrawingArea as a Cairo device I very often encounter the error: "figure margins too large" Even for the below "getting started" example from http://www.ggobi.org/rgtk2/ this is the case. > win = gtkWindow() > da = gtkDrawingArea() > win$add(da) > asCairoDevice(da) [1] TRUE > plot(1:10) Fehler in plot.new() : Grafikr?nder zu gro? > Also