Hi Henrique, It is definitely better, but it doesn't show me the ProbeID which identify the probes name
Here was the result when i export to excel with your code. "Variance" 1 2.425509867 21.6216446425273 any suggestions? thanks, Kei Keizer_71 wrote: > > Hello, > > Thanks everyone for helping me with the previous queries. > > step 1: Here is the orginal data: short sample > > ProbeID Sample_1_D Sample_1_C Sample_2_D Sample_2_C > 1 224588_at 2.425509867 11.34031409 11.46868531 11.75741478 > > step 2: i calculate the variance of the sample using this R code > > x<-1:20000 > y<-2:141 > data.matrix<-data.matrix(data[,y])#create data.matrix > variableprobe<-apply(data.matrix[x,],1,var) > > step 3: however, when i type in variableprobe, it gives me this. > > 1 21.58257457 > > step 4: I need the code to output this: > > ProbeID Variance > 1 224588_at 21.58257457 > > > What do i need to do to modify the code to give me better description like > the one above? > > thank. > Keizer > > > > -- View this message in context: http://www.nabble.com/Variance-Calculation-in-R-tp15790621p15791115.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
