similar to: Is it possible to save raster data as a bitmap?

Hello everybody, I'm running R under Mac OS 10.6.3 on a MacBook 2.16 GHz Intel Core 2 Duo. I've recently installed R 2.11.0 and the RImageJ library v. 0.1-142. When trying to follow the example given in the package manual and I get the following error: download.file( "http://www.google.fr/intl/en_en/images/logo.gif", dest = "google.gif" ) trying URL

I am out of my league with this question. The following code starts the java imaging program ImageJ from within R, and displays an image (assuming ImageJ is installed on your computer). library(RImageJ) img <- IJ$openImage( file.choose() ) #pick an available .tif file img$show() # make the image object visible # An image is now displayed # find out about the objects involved >

Hm..., Should these two versions produce the same solution? Unfortunately and shame to confess, I don't know much about the colors in R: myColors <- c("#FF7C00","#00BF40","#FFFF00") Colors=rgb2hsv(col2rgb(myColors)) apply(Colors,1,mean) h s v 0.2122974 1.0000000 0.9163399 * * * * * # Average the 1st two by taking the middle colour

On 16/04/2016 12:33 PM, Atte Tenkanen wrote: > Hm..., > > Should these two versions produce the same solution? I wouldn't expect them to. Duncan Murdoch Unfortunately and > shame to confess, I don't know much about the colors in R: > > myColors <- c("#FF7C00","#00BF40","#FFFF00") > Colors=rgb2hsv(col2rgb(myColors)) >

Since these are color strings, you can use functions in the grDevices package (other others) to manipulate them. E.g., you can convert them to various color spaces and perhaps use the mean in one of those spaces as your 'average color'. > myColors <- c(One="#FF7C00",Two="#00BF40",Three="#FFFF00") > col2rgb(myColors) One Two Three red

Hi, I'm using rsync for a couple of things but I am at a point where I could not find a solution for my problem. this is what I want to do: rsync only the files i_* from a directory from machine A to machine Bi and delete them from machine B if they on longer exist on machine A. so I use the command: rsync -azv --stats -e ssh --delete i_* user@host:/dir/ When using this command the files

Hello, I've uploaded the initial release (0.0-142) of the RImageJ package to CRAN. The package allows R to use the facilities of the java based image processing and analysis platform ImageJ. See also the announcement on my blog, with a very simple example showing how to use the package: http://romainfrancois.blog.free.fr/index.php?post/2009/06/22/using-ImageJ-from-R%3A-the-RImageJ-package

Hello, I've uploaded the initial release (0.0-142) of the RImageJ package to CRAN. The package allows R to use the facilities of the java based image processing and analysis platform ImageJ. See also the announcement on my blog, with a very simple example showing how to use the package: http://romainfrancois.blog.free.fr/index.php?post/2009/06/22/using-ImageJ-from-R%3A-the-RImageJ-package

I am suddenly no longer able to see any existing files on one of my shares, from my Windows clients. I have a Linux server (Fedora Core 8) which used to be my firewall and router as well as file and print server. There are two Samba shares on it I have mounted on various Windows clients: my home directory and a multimedia directory with my music and videos, etc. I mount the former as H: on all my

Anyone who is interested in using optimal colour palettes should look at the work of Cindy Brewer: www.colorbrewer.org I have written code to use her colour schemes in R. It is included below. Perhaps someone may find this interesting enough to work into a package. Included also is a function showpalette, which was posted here a while back. I don't remember who wrote it. I have copied all

Hi, I'm trying to use the data which I generate within R to make images in .bmp format to be lateron printed by a printer. My first thought was the RImageJ package, but this seems to be discontinued. What I am currently doing is generating a matrix of grey values, which needs to be parsed into the right image format. Is anyone aware of a package or rather "easy" way to generate

Dear r-devel, I have implemented a function to create color palettes with improved contrast and logical order, compared with the built-in ones: source("arni.colors.R") # code is given below barplot(rep(1,100), col=arni.colors(100), space=0, border=0, axes=F) par(mfrow=c(2,1)) # rainbow() has too much green... barplot(rep(1,50), col=rev(rainbow(50,end=0.7)), space=0, border=0,

I noted that there is a hsv2rgb in the C-API, but no corresponding function in R, while rgb2hsv is available in R. Does the functionality of hsv2rgb hide under some other name? Dieter

Hello, when i use libguestfs to ceph rbd by golang, but there has panic: panic: runtime error: cgo argument has Go pointer to Go pointer goroutine 1 [running]: guestfs.(*Guestfs).Add_drive.func11(0xc000010028, 0xcda6a0, 0xc0000d6000, 0xc000090280) /opt/gopath/src/guestfs/guestfs.go:1440 +0xc2 guestfs.(*Guestfs).Add_drive(0xc000010028, 0x7ffd4b5d67ff, 0xd, 0xc00008d9d8, 0x0)

Hello, I've looked in tools:::.install_packages for some sort of hook that would let packages developers point to further instructions after a package is installed. For example, some packages need to setup environment variables, ... Is there something I have missed ? Romain -- Romain Francois Independent R Consultant +33(0) 6 28 91 30 30 http://romainfrancois.blog.free.fr |-

Hello, As this little program illustrates, duplicating a STRSXP does not seem deep enough. require( inline ) fx <- cfunction( signature( x = "character"), ' SEXP y = PROTECT( duplicate( x ) ); int n = LENGTH(x); int nc = 0 ; char* p = 0 ; for( int i=0; i<n; i++){ p = (char*)( CHAR( STRING_ELT( y , i ) ) ); nc = strlen( p ) ; for( int j=0; j<nc; j++){ p[j] =

I want to get a lighter shade of a color...I have a lot of colored objects and want each one printed as a foreground against a slightly lighter background. I thought I could try something like changing the alpha channel by first converting it to rgb. But prior to trying that, I'm stuck with how to get the color after converting using col2rgb() to be interpreted again as a color, rather than

Hello, I'm trying to inject html code into an Rd file. For example : \name{test} \alias{test} \title{test} \description{ \if{html}{ \Sexpr[stage=render,results=text,echo=FALSE]{ "<b>hello</b>" } } } when this file is rendered, instead of having "hello" in bold, I get <b>hello</b>, i.e. characters < and > are replaced with html entities :

Hiya Karl (and everybody else), I noticed today that ices 2.0-kh60a came out last January, and opted to give it a try. Unfortunately, it just wouldn't work at all, so I had to back down to 2.0-kh60. What I get in my log is this: [2006-04-21 21:16:18] DBUG om_shout/check_shout_connected Time we started stream on ice.imars.net:8000/cigr.ogg [2006-04-21 21:16:19] EROR

Fr?d?ric Bri?re wrote: > Hiya Karl (and everybody else), hi > I noticed today that ices 2.0-kh60a came out last January, and opted to > give it a try. Unfortunately, it just wouldn't work at all, so I had to > back down to 2.0-kh60. ok, send me your xml, so I know what parts are being used, I have to check the code for something else, but it does look to be the libshout part