similar to: Size of jpegs/pngs

Displaying 20 results from an estimated 800 matches similar to: "Size of jpegs/pngs"

2005 Aug 26
3
parts of data frames: subset vs. [-c()]
Dear all I have a problem with splitting up a data frame called ReVerb: ?? str(ReVerb) `data.frame': 92713 obs. of 16 variables: $ CHILD : Factor w/ 7 levels "ABE","ADA","EVE",..: 1 1 1 1 1 1 1 1 1 1 ... $ AGE : Factor w/ 484 levels "1;06.00","1;06.16",..: 43 43 43 99 99 99 99 99 99 99 ... $ AGE_Q : num 2.0 2.0 2.0 2.4 2.4
2005 Sep 13
3
How to erase objects
Hi, I admit that I rather carelessly built lots of large objects and therefore ran out of memory. Most objects, which I have at the moment are now unnecessary, but it would take a lot of time to recreate the last few ones from scratch. So I would like to erase (get rid of) selected objects in order to be able to continue. Does anyone know how I could do this? Machen Sie aus 14 Cent spielend bis
2005 Sep 13
3
where is eda library (Prof. Ripley's Exploratory Data Analysis Library)
Hi I want to install eda library. Where can I download it? I use R version 2.1.0 on Linux. Thanks. Stephen. ----- Original Message ----- From: Luis Ridao Cruz <Luisr at frs.fo> Date: Tuesday, September 13, 2005 1:32 pm Subject: Re: [R] How to erase objects > ?rm > > > >>> <v.schlecht at arcor.de> 13/09/2005 12:08:55 >>> > > Hi, I admit that
2005 Sep 12
0
grepping and splitting (with R 2.1.1)
Hi R experts I have the following regular expression problem. I am writing a basic corpus retrieval program, i.e. a concordancer/function where a user enters - a set or a directory of text files to search; - a regular expression to search for in these files. I want to provide an output in which the matches of the regular expression are listed in one central column and the neighboring columns
2011 Aug 10
1
Sequential Naming of ggplot .pngs using plyr
If I have data: dat<-data.frame(a=rnorm(20),b=rnorm(20),c=rnorm(20),d=rnorm(20),site=rep(letters[5:8],each=5)) And want to plot like this: ctr<-1 for(i in c('a','b','c','d')){ png(file=paste('/tmp/plot_number_',ctr,'.png',sep=''),height=8.5, width=11,units='in',pointsize=9,res=300) print(ggplot(dat[,names(dat) %in%
2007 Dec 20
1
auto named savings (pngs & data-frames)
Hello, i only got a small problem. i try to create automatic new dataframes, or png?s. the main problem i got is: how can i create automatic a new name for a file (read out by simply "for") - i tried to use "(paste...) but theres an errormessage, about a wrong declination. R told it is as.character, but need as.Real. Should i use another method than "paste"? i tried as
2006 Feb 01
1
Word boundaries and gregexpr in R 2.2.1
Hi I have a question concerning how to match word boundaries which I bet has a very simple answer, but I haven't found it with trial and error nor by searching the help archives for the terms in the subject line. The problem is this: I have a vector of two character strings. text<-c("This is a first example sentence.", "And this is a second example sentence.") If I
2007 Dec 21
0
Plotting multiple jpegs on a plot?
Hello, I have a set of data which I currently represent graphically on a plot. To do that, I use the embedded functions from the graphics package (symbols, rect, etc.) However, I would like to use static jpeg images to represent the data if possible. Here's my progress so far: 1. Used the rimage library to obtain the read.jpeg func. 2. Read in my jpeg image and assigned it to a variable. 3.
2009 Jan 22
1
Problem with cex=0.1 when making jpegs
I am using the following script to make .jpg files. jpeg('plotx.jpg') ddat <-read.table("file",header=T) attach(ddat) tdat<-read.table("file1") plot(xx1,yy1,type='p',pch=1,col="blue",cex=0.2,xlim=c(0,3.5),ylim=c(-75,75)) points(tdat,col="green",pch=1,cex=0.2) dev.off() The problem is that I want the points to be very small;
2003 Aug 15
2
Is there a package for digitizing or reading jpegs, ets. in R?
I'm interested in digitizing some scanned time series, and looking for a solution that is easy and flexible. I thought I might be able to use R's locator() if I could get the image into a device. I noticed that there are some packages like (rimage), but it (a) doesn't seem to be available for the Windows version and forces me to upgrade a bunch of libraries for my linux system. It
2007 Jan 15
2
Problem with pdf, png, jpeg devices and files named CON on Window s
Hi I cannot seem to create any files that have the name "CON" before the file extension, i.e. all of the following fail: > pdf("CON.pdf") Error in pdf("CON.pdf") : unable to start device pdf > jpeg('CON.jpeg') Error in jpeg("CON.jpeg") : unable to start device devWindows > png('CON.png') Error in png("CON.png") : unable
2004 Dec 20
3
Memory problem with jpeg() and wide jpegs
Hi I have been creating very, very long jpeg images for the last two weeks using jpeg(). All of a sudden, and I mean that, it's stopped working - I've not changed a thing! The error message I get is: > jpeg("out.jpg",width=50000,height=480, quality=100) Error in devga(paste("jpeg:", quality, ":", filename, sep = ""), width, : unable
2004 Apr 01
4
gray background on jpegs using dev.print()
When I try writing the current device to a jpeg file I keep getting a gray background for the jpeg images using dev.print. I have tried using the option bg="white" and bg="#FFFFFF" but neither seem to have any effect. If instead of writing to a screen device I open a jpeg device I can get any background color I want. This works, but I prefer to write to the screen and then
2008 Aug 19
1
jpeg, dev.off() inside function
Dear all, I am trying to plot and save the plots. I have written a small function for that in which I use the jpeg and dev.off() commands. Strangely, when these commands are inside the function, they are not working anymore. For instance: dataframe<- data.frame (x=c(1:20),y=seq(0,9.5, length=20)) for (i in seq(0,15, length=4)){ setwd ("C:/R") jpeg(filename =
2009 Oct 24
2
Implementation of gamma function for large number
Hi - I ran into a problem when the argument to gamma function is large. Says, if I do the following: > gamma(17000) [1] Inf Warning message: value out of range in 'gammafn' Is there anyway to get around this or other implementation? Thank you. -rc
2009 Sep 27
3
Teach me how to transpose in R
Hi guys, I need your help!! My goal is to make a csv file from ncdf file. This is the code i've used : > hyo=open.ncdf("C:/CRUTEM3.nc") > hyo [1] "file C:/CRUTEM3.nc has 4 dimensions:" [1] "longitude Size: 72" [1] "latitude Size: 36" [1] "unspecified Size: 1" [1] "t Size: 1916" [1] "------------------------"
2011 Aug 16
1
Asterisk -> Office 365 Unified Messaging... anyone done it?
Trying to make this work, and Office 365 support is useless, giving me the following response when I asked them for help troubleshooting a 488 Not Acceptable Here. Regarding your service request about configuring your PBX system with Office 365, we do not support specific setups for PBX systems for Unified Messaging. Please contact the vendor for more specific instructions and configurations.
2011 Dec 09
2
Help with the Mice Function
Hi, I am attempting to impute my data for missing values using the mice function. However everytime I run the function it freezes or lags. I have tried running it over night, and it still does not finish. I am working with 17000 observations across 32 variables. here is my code: imputed.data = mice(data, + m = 1, + diagnostics = F) Thank you in advance, Richard [[alternative HTML version
2008 Jan 31
3
Memory problem?
Hello R users, I am trying to run a cox model for the prediction of relapse of 80 cancer tumors, taking into account the expression of 17000 genes. The data are large and I retrieve an error: "Cannot allocate vector of 2.4 Mb". I increase the memory.limit to 4000 (which is the largest supported by my computer) but I still retrieve the error because of other big variables that I have in
2008 Feb 01
1
display pictures
Dear all, is there a possibility to display pictures (jpegs, pngs, ...) in R? Maybe the following (hypothetical) code makes it clearer what I have in mind: plot(x=0:100, y=0:100, type="n") rect(xleft=25, xright=75, ybottom=30, ytop=95, fill="apicture.png") Thank you, Roland [[alternative HTML version deleted]]