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.
Many Thanks.
Jumlong

-- 
Jumlong Vongprasert Assist, Prof.
Institute of Research and Development
Ubon Ratchathani Rajabhat University
Ubon Ratchathani
THAILAND
34000

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