Dear list,
Hi! I have a table A, 238304 rows and 243 columns (representing
samples). First of all, I would like to pool a group of samples
from 48th column to 243rd column and take the average across
them and make a single column,saying as the reference column.
Second, I want to use each column of first 47 columns in table
A divided by the reference column and end up with a new table
B with 238304 rows and 47 columns.
Is there any simple code which especially could do sth like
reference_column<-(A[,48]+A[,49]+...A[,243])/196
and B<-A[,1:47]/reference_column?
Thank you very much for your help!
Best,
Allen
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