Hi,
I need to find the z-score of the data present in a speardsheet. The values
needs to be calculated for each gene across the samples (refer the
example). And, it should be a simple thing, but I am unable to do it right
now !
The example re the structure of the spreadsheet is -
# Example:
MyFile <- read.csv( text=
"Names,'Sample_1','Sample_2','Sample_3'
Gene_1,87,77,88
Gene_2,98,22,34
Gene_3,33,43,33
Gene_4,78,,81
", header=TRUE, row.names=1, as.is=TRUE, quote="'", na.strings="" )
And, I think this formula that can be used for z score is -
(x-mean(x))/sd(x)
And, apply() function for rows should work. But bottomline - I am unable to
do it correctly.
Could you show me - using apply () or some other alternative function.
Thank you.
Cheers,
Ved
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