Programmer Guide/Command Reference/EVAL/median: Difference between revisions
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Revision as of 17:31, 18 November 2010
Contents
median
Calculate the median of the vector x.
Usage:
median(x)
median(x,q)
Parameters:
- x
- The data vector.
- q
- The cut point (
0< q <1) or a vector of cut points. If no cut point is specified,0.5is used. If q is a vector, each element q[i]must be in the range0to1.
Return Type:
scalar
Result:
The value xq with sum(h(x <= xq)) = q
If q is a vector the result is a vector xq with nrow(q) elements with: h(x | x<=xq[i]) = q[i]
