?mean You need to read tutorial or two, particularly with reference to indexing.
The CRAN site has any number of useful papers and books that you can download. John Kane Kingston ON Canada > -----Original Message----- > From: leonardsqual...@hotmail.com > Sent: Wed, 11 Jun 2014 12:17:02 +0000 > To: r-help@r-project.org > Subject: [R] Average value in a particular range of a matrix > > Hi > > I have a matrix with values of size 1*500 i have to find the avg > value of first 1 to 100 ,avg value of 100 - 200 and so on up to 400-500. > is there any function to find the average of 1 -100 and 100 - 200, 200 - > 300,300 - 400,400 - 500 ?? > > Thanks > > [[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. ____________________________________________________________ FREE 3D MARINE AQUARIUM SCREENSAVER - Watch dolphins, sharks & orcas on your desktop! ______________________________________________ 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.