I have a lot (more than one hundred) of files with tables of the same kind
(quadratic, same size) and I want to obtain some statistics for every position
on them. Therefore, as a result I want another table. I import every table, and
create an object read.table for it, then I have try to create a list or a
data frame and directly utilize some functions like sd( ) without success,
because it calculate sd for the columns . Which kind of object should I
create in order to utilize directly this kind of functions? Should I program
it throw for loops?
David
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