hi, I have a matrix where I would like to remove certain values below a threshold. is there an easy way to do that? like repalcing values <100 another value, lets say 100, in an array? are we supposed to use the apply function? Thanks ______________________________________________________________________ ______________ Comedy with an Edge to see what's on, when.

x[x<100]=100 At 01:59 PM 6/15/2007, D.Enrique ESCOBAR ESPINOZA wrote: >hi, >I have a matrix where I would like to remove >certain values below a threshold. >is there an easy way to do that? > >like repalcing values <100 >another value, lets say 100, >in an array? > >are we supposed to use the apply function? >Thanks > > > >_____________________________________________________________________ _______________ > >Comedy with an Edge to see what's on, when. > >_______________________________________________ >Bioconductor mailing list >Bioconductor at stat.math.ethz.ch >https://stat.ethz.ch/mailman/listinfo/bioconductor >Search the archives: >http://news.gmane.org/gmane.science.biology.informatics.conductor Naomi S. Altman 814-865-3791 (voice) Associate Professor Dept. of Statistics 814-863-7114 (fax) Penn State University 814-865-1348 (Statistics) University Park, PA 16802-2111

D.Enrique ESCOBAR ESPINOZA wrote: > hi, > I have a matrix where I would like to remove > certain values below a threshold. > is there an easy way to do that? > > like repalcing values <100 > another value, lets say 100, > in an array? Both of your questions today indicate a lack of knowledge about the fundamental aspects of working with R. That's fine, as everybody has to start somewhere. However, all of these subjects are covered in 'An Introduction to R', which ships with all versions of R, and is also available on the R-project website. In addition, this is the Bioconductor list, which is supposed to be dedicated to questions concerning Bioconductor packages rather than basic R questions. So please read 'An Introduction to R'. It really is worthwhile. Also, please read the BioC posting guide: http://www.bioconductor.org/docs/postingGuide.html As well as the R-help posting guide: http://www.r-project.org/posting-guide.html Best, Jim > > are we supposed to use the apply function? > Thanks > > > > ____________________________________________________________________ ________________ > > Comedy with an Edge to see what's on, when. > > _______________________________________________ > Bioconductor mailing list > Bioconductor at stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor -- James W. MacDonald, M.S. Biostatistician Affymetrix and cDNA Microarray Core University of Michigan Cancer Center 1500 E. Medical Center Drive 7410 CCGC Ann Arbor MI 48109 734-647-5623 ********************************************************** Electronic Mail is not secure, may not be read every day, and should not be used for urgent or sensitive issues.