[R] mean

[luca laghi]

I need help to understand what Iam doing wrong:
Yesterday I found the averages of a matrix columns with

apply(x, 2, mean)

Today I did it again on the same matrix obtaining results a bit different.
Why?

I suspect it is a sort of rounding problem as today the numbers are plotted
in scientific notation and yesterday they where not ...

Luca



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