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time0total
2012 Jul 23
3
How to do the same thing for all levels of a column?
...If I name this table as myfile.txt, I have the following scripts to
calculate the ratio of each amino acid residue at position 1:
# showing levels of the 3rd column, which means the types of residues
>myfile[,3]
# calculating the ratio of L
>list=c(which(myfile[,3]=="L"))
>time0total=sum(myfile[,2])
>AA_L=0
>for (i in 1:length(list)){AA_L=sum(myfile[list[[i]],2]+AA_L)}
>ratio_L=AA_L/time0total
So how can I write a script to do the same thing for the other two levels
(T and R) in column 3, and also do this for every column that contains
amino acid residues?
M...