On Aug 3, 2009, at 9:07 AM, Paulo Eduardo Cardoso wrote:
Maybe a very basic question.
How can I get mean of a object like this
str(object)
num [1:53, 1:2] 734 734 736 734 736 ...
- attr(*, "dimnames")=List of 2
..$ : NULL
..$ : chr [1:2] "x" "y"
I want the mean of both x and y
apply(object, 2, mean)
or...
colMeans(object) # which will be faster
_______________
Paulo E. Cardoso
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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