Hello everyone.. Is there any graphical tool to help me see what is inside a
matrix? I have 100x100 dimensions matrix and as you already know as it does not
fit on my screen R splits it into pieces.
I would like to thank you in advance for your help
Best Regards
Alex
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Hi: One possibility is a heatmap, although there are other approaches. x <- matrix(sample(1:100, 10000, replace = TRUE), nrow = 100) image(x) xx <- apply(x, 1, sort) # sorts the rows of x image(xx) # ggplot2 version: library(ggplot2) ggplot(melt(x), aes(x=X1, y=X2, fill=value)) + geom_tile() + scale_fill_gradientn(colour = terrain.colors(10)) See the online help page http://had.co.nz/ggplot2/scale_gradientn.html for several examples of choosing color ranges in scale_fill_gradientn(). To get similar control over image, change the col = argument according to the description on the help page of image - ?image . Another alternative is an enhanced heatmap function in package gplots. I'll leave that to you to investigate... HTH, Dennis On Thu, Sep 9, 2010 at 12:22 AM, Alaios <alaios@yahoo.com> wrote:> Hello everyone.. Is there any graphical tool to help me see what is inside > a > matrix? I have 100x100 dimensions matrix and as you already know as it does > not > fit on my screen R splits it into pieces. > > I would like to thank you in advance for your help > Best Regards > Alex > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >[[alternative HTML version deleted]]
The image function will create a plot with the values transformed to colors. Or the View function (note the capitol V) will let you look at it in a spreadsheet like window with scrollbars. -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.snow at imail.org 801.408.8111> -----Original Message----- > From: r-help-bounces at r-project.org [mailto:r-help-bounces at r- > project.org] On Behalf Of Alaios > Sent: Thursday, September 09, 2010 1:23 AM > To: Rhelp > Subject: [R] See what is inside a matrix > > Hello everyone.. Is there any graphical tool to help me see what is > inside a > matrix? I have 100x100 dimensions matrix and as you already know as it > does not > fit on my screen R splits it into pieces. > > I would like to thank you in advance for your help > Best Regards > Alex > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting- > guide.html > and provide commented, minimal, self-contained, reproducible code.