[R] compute variance of every column in a matrix without a loop
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Sun Mar 17 12:15:43 CET 2002
Francisco J Molina <FJMolina at lbl.gov> writes:
> Is it possible to compute the variance of every column in a matrix
> without a loop?
apply(m,2,var)
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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