hi, i am new to Bioconductor. The question may sound trivial. I am using Heatmap_plus. Instead of the default options I need to do hierarchical clustering using Pearson correlation coefficient. How can I precisely do this ? Thanks, Vivek. [[alternative HTML version deleted]]

Hello Vivek, I don't know Heatmap_plus, but other heatmap functions (such as heatmap.2 from gplots) usually have an argument called "distfun", used to calculate the distance between rows/columns. I think I've sometimes used something along the lines of > heatmap.2(data, distfun=function(x) as.dist(1-cor(t(x)), ...) but I can't remember exactly. HTH \Heidi On 17 Sep 2009, at 14:03, vivek modi wrote: > hi, > > i am new to Bioconductor. The question may sound trivial. > > I am using Heatmap_plus. > Instead of the default options I need to do hierarchical clustering > using > Pearson correlation coefficient. > How can I precisely do this ? > > > > Thanks, > > Vivek. > > [[alternative HTML version deleted]] > > _______________________________________________ > 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

Hi Vivek one way to increase the probability of getting a helpful answer is to follow the posting guide, which helps other people understand what you want. http://www.bioconductor.org/docs/postingGuide.html > hi, > > i am new to Bioconductor. The question may sound trivial. > > I am using Heatmap_plus. > Instead of the default options I need to do hierarchical clustering using > Pearson correlation coefficient. > How can I precisely do this ? > > > > Thanks, > > Vivek. > ------------------------------------------------------- Wolfgang Huber EMBL http://www.embl.de/research/units/genome_biology/huber