[R] calculating probability
David Winsemius
dwinsemius at comcast.net
Mon Aug 24 15:01:47 CEST 2009
On Aug 24, 2009, at 8:11 AM, maram salem wrote:
> Hi all,
> I've a trivial question. If (q) is a continous variable,actually a
> vector of 1000 values. how to calculate the probability that q is
> greater than a specific value, i.e. P(q>45)??
sum(q>45)/1000 # if no NA's in vector
sum(q>45, na.rm=TRUE)/ sum(!is.na(q)) # if NA's in vector
--
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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