search for: png256

...rying to generate plots on our unix (no X) server to be included in our web-pages -> specifically pngs. Without X, png() obviously doesn't work, so I have been trying to define the graphics print device bitmap as described in the help: > bitmap(file="plot.png", type = "png256", height = 6, width=6,res=72) > pie(c(12,5)) > dev2bitmap(file="plot.png", type = "png256", height = 6, width = 6,res=72) I end up with "plot.png" as a nonzero png file, but it is always blank... I have gs 6.51 installed & R_GSCMD=/usr/bin/gs set....

...zation", sep="=", header=TRUE) names(my.bowmore.Sep.2002.cpu.utilization) attach(my.bowmore.Sep.2002.cpu.utilization) etc. . . . My "plotting" file looks like this: bitmap(file = "/auto/solperf/tgu/Images/badger.Sep.2002.usr.cpu.summary.thumbnail", type = "png256", height = 6, width = 6, res = 72") summary(my.badger.Sep.2002.cpu.utilization) bitmap(file = "/auto/solperf/tgu/Images/badger.Sep.2002.usr.cpu.lines.thumbnail", type = "png256", height = 6, width = 6, res = 72") lines(usr.cpu ~ Time, xlab = "Time", yla...

...error message when I increase the resolution ("res=30" to "res=350") of my graph: Error in plot.xy(xy, type, ...) : ignoring SIGPIPE signal Calls: plot -> plot.default -> plot.xy Execution halted Here is the code: ofn <- "MAY11.png" bitmap(ofn, type = "png256", width = 21, height = 30, pointsize = 30, bg = "white",res=350) <<<<<<< If I change "res=350" to "res=30", everything is fine. par(cex.main=1.2,cex.lab=1.8,cex.axis=1.4) par(mfrow = c(6,3)) for(C in 1:18) { ..... Does anybody have any comm...

Hello all, I have this simple barplot code: ifn <- "id.dat" dat <- read.table(ifn) ofn <- "id.png" bitmap(ofn, type = "png256", width = 30, height = 30, pointsize = 30, bg = "white",res=50) par(mar=c(5, 5, 3, 2),lwd=5) par(cex.main=1.6,cex.lab=1.6,cex.axis=1.6) names(dat)<-c("NumberOfPeople","Average") Graph<-barplot(dat$Average) dev.off() and here is the data (id.dat): 15 0....

Hello All: Can anybody tell me what is the problem with my program please. I have an error message as appears below. My program is: ifn <- "Jul08_09.LM" data <- read.table(ifn) ofn <- "Jul.png" bitmap(ofn, type = "png256", width = 30, height = 30, pointsize = 30, bg = "white",res=50) par(mar=c(5, 5, 3, 2),lwd=5) par(cex.main=1.6,cex.lab=1.6,cex.axis=1.6) par(mfrow = c(3,4)) ifn <- "T.dat" trait <- read.table(ifn) i <- 1 j <- 1 for(k in 1:12) { dat <- data[i:(i+2), ] c...

...solperf/tgu/ActiveParsedFiles/yugo/Mar.2003/unused.memory", sep="=", header=TRUE) names(my.yugo.Mar.2003.unused.memory) attach(my.yugo.Mar.2003.unused.memory) bitmap("/auto/solperf/tgu/Images/Mar.2003/yugo.Mar.2003.freemem.lines.jpg", height = 700, width = 700, type = "png256", res = 50) plot(freemem, xlab = "Time", ylab = "Free Memory Pages Available", main = "yugo's Free Memory Pages Available Mar.2003", type="l", col="red", xaxt = "n") temp <- seq(1, length(Time), by = 144) axis(1, at = temp, lab...

...nt i'm using the png format. The png() ...using png(file="Rplot%03d.png", ...); 'plots' ; dev.off()... produces very good graphics. The problem is it takes too long to produce the png files. The bitmap() ...using bitmap(file="Rplot%03d.png", type="type = "png256",...); 'plots'; dev.off()... works really fast. But on my system the quality is poor compared with png() even with a higher resolution than 72. I'm using R 1.7.0 on Windows NT ; Ghostscript 8.00 1) Is there a possibility to speed up the png() or to improve the quality of the...

...help -----code is ------------------------------------------------------------ temp <- seq(5500000/2, 22000000, 5500000/2) sV2 <- c(1, 1+temp[-length(temp)]) eV2 <- temp i=1 bitmap(paste("c:/vidhu/poster/poster_56half_2", LETTERS[i], ".png", sep = ""), "png256", width = 55.5, height = 8.875, res = 300) par(mfrow = c(28,1), mar = c(0.5,3,0.5,0.5), mgp = c(2,0.65,0)) for(i in 1:length(sV2)) { cat("i = ", i, "\n", sep = "") if (i%%2) { pSL(sV2[i], eV2[i], 50000)} } dev.off() windows() [[alternative HTML v...

...<- file.path(path, filename); print(pathname); # Tell R where Ghostscript is gsexe <- "C:/gs/gs8.54/bin/gswin32c.exe"; gsexe <- "C:/Program Files/gs/gs8.56/bin/gswin32c.exe"; gsexe <- shortPathName(gsexe); cmd <- paste(gsexe, " -dNOPAUSE -dBATCH -q -sDEVICE=png256 -r72 -g432x432 -sOutputFile=", pathname, sep=""); print(cmd); print(nchar(cmd)); tmp <- tempfile(); postscript(file=tmp, width=6, height=6, pointsize=9, paper="special", horizontal=FALSE, print.it=TRUE, command=cmd); plot(1); dev.off(); It seems to have to do with the...

...ems OK in the input data files and data file 14th is not the biggest input file. Here is the code: for(Br in 1:3) { if(Br == 1) B <- "U" if(Br == 2) B <- "A" if(Br == 3) B <- "O" ofn <- sprintf("%s.png", B) bitmap(ofn, type = "png256", width = 21, height = 30, pointsize = 30, bg = "white", res = 300) <<<<when I decrease res to 50(res=50), everything is OK with no error message par(cex.main = 1.2, cex.lab = 1.8, cex.axis = 1.4) par(mfrow = c(6,3)) for(C in 1:18) { if( ( C + 2 ) %% 3 ==...

...asterization. There can be appended or removed pixel columns or pixel rows depending on plot region dimensions. I witness this with both R version 1.8.1 and R version 2.0. print($out "bitmap('/usr/local/mycrow/tmp/out.png', type = 'png256', height = ".(int($height*68/64)/64).", width = ".(int($width*69/64)/64).", res = 64, pointsize=0)\n"); print($out 'par(mar=c(0,0,0,0))'."\n"); my $width1 = $width-1; my $height1 = $height-1; print($out <<END); plot.new() plot.window(c(0,$width...

Hi I have seen a few posts to this list regarding problems accessing the x11() device over cgi - namely, when trying to create a graphic using the jpeg() function, everything is fine from the command line but it won't work over cgi, producing the error: "Unable to open connection to X11 display" Has anyone actually solved this particular problem satisfactorily? Please reply

...ducing a png/jpg-image through the bitmap-function. I was actually able to produce nice-looking png's doing the steps: 1. Using bitmap to produce a pdf-file 2. invoking ghostscript from my bash-shell and converting the pdf-file produced by the bitmap-function into a png-image. ( gs -sDEVICE=png256 -r150 -dBATCH -sOutputFile=barplotx_normal.png /usr/share/ghostscript/7.05/examples/barplotx_normal.pdf) In the end the best suggestion was to try another approach using the png-function in R instead of the bitmap-function. /Niels R1.8.0 Linux redhat 9 GhostScript version 7.05 Cand....

...$selected_host $graph_start $graph_end < ..\/..\/..\/page\/R\/" . $graph_name . ".r "; system("$to_run"); .... .... My R file looks like this... ..... ..... files <- "/u/Docs/tomcat/webapps/page/Web/img/tmp.png" bitmap(file = files, type = "png256", height = 8, width = 12, res = 72) plot(strptime(dat[,1],"%Y-%m-%d %H:%M"), dat[,2], type = "l", ylim = c(min(dat[,2]),max(dat[,2])), ylab = "CPU Load", xlab = "Time", col = "red", main = tit...

Hy all, I wish to get rid of starting X to get graphics, i tryed dev2bitmap and i've being working around without finding good parameters. By example : Dev2bitmap(file="Rplot001.png", type = "png256",width=600/72,height=486/72) par(mar=c(5,2,1,1),xaxs = "i", yaxs = "i",ps=13) I tryed with res=something inside dev2bitmap too and i'm always far from the beauty of the X version. So is there an other way to bypass the use of X ? Thks all COMTE Guillaum...

Hello All: Can somebody please tell me how I can have the average of 'y' on the graph for different values of 'x in the following code? ofn <- "xy.png" bitmap(ofn, type = "png256", width = 21, height = 30, pointsize = 30, bg = "white",res=50) ifn <- sprintf("xy.txt") data <- read.table(ifn) names(data) <- c("x","y") Graph <- plot(data$x, data$y) dev.off() Thanks, MJK [[alternative HTML version deleted]]

...ent i'm using the png format. The png() ...using png(file="Rplot%03d.png", ...); 'plots' ; dev.off()... produces very good graphics. The problem is it takes too long to produce the png files. The bitmap() ...using bitmap(file="Rplot%03d.png", type="type = "png256",...); 'plots'; dev.off()... works really fast. But on my system the quality is poor compared with png() even with a higher resolution than 72. I'm using R 1.7.0 on Windows NT ; Ghostscript 8.00 1) Is there a possibility to speed up the png() or to improve the quality of the...

Dear R-freaks, I am new to R and loke to write plots directly to a file with a script in batch-mode. the following error occured: # writing section > x11() Error in x11() : the x11 device has not been loaded Execution halted I do not know what to do! thanks for your help cheers steph -- Linux: the operating system with a CLUE... Command Line User Environment.

...nd I do know it is gswin32c on Windows: that is easy to incorporate but I have not tested it. One could attempt to retrieve height and width from the current device, but I don't see that information is presently available from R code. Any comments? dev2bitmap <- function(file, type="png256", height=6, width=6, res=72, pointsize, ...) { rc <- system("gs -help > /dev/null") if(rc != 0) stop("Sorry, gs cannot be found") gs <- system("gs -help", intern=TRUE) st <- grep("^Available", gs) en...

...-- next part -------------- my.yugo.Apr.2003.other.info <- read.table(file="/auto/solperf/tgu/ActiveParsedFiles/yugo/Apr.2003/other.info", sep="=", header=TRUE) names(my.yugo.Apr.2003.other.info) attach(my.yugo.Apr.2003.other.info) bitmap("foo8.bmp",type = "png256", height = 4, width = 4,) par( omi = c(.5,.1,0,0)) plot(total.views, xlab = "Time", ylab = "Total number of views", main = "yugo's Total number of views Apr.2003", type="l", col="red", xaxt = "n", cex.axis = 1.5, cex.main = 1.2...