From: Keizer_71 <christophe.lo_at_gmail.com>

Date: Sun, 02 Mar 2008 09:30:35 -0800 (PST)

Date: Sun, 02 Mar 2008 09:30:35 -0800 (PST)

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?

-- View this message in context: http://www.nabble.com/Variance-Calculation-in-R-tp15790621p15790621.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.Received on Sun 02 Mar 2008 - 17:36:57 GMT

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