On Nov 12, 2010, at 1:07 AM, Jumlong Vongprasert wrote:
Dear All
I have problem about calculte variance use R.
I use trimm mean by mean(x, trim=.05) and I want to calculate
variance
with trimm=.05.
How I can do this.
methods(mean)
Why not take the code for mean.default and substitute var
for .Internal( mean(x)) ?
Many Thanks.
Jumlong
--
Jumlong Vongprasert Assist, Prof.
Institute of Research and Development
Ubon Ratchathani Rajabhat University
--
David Winsemius, MD
West Hartford, CT
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