which.min                package:base                R Documentation

Where is the Min() or Max() ?

Description:

     Determines the location, i.e., index of the (first) minimum or
     maximum of a numeric vector.

Usage:

     which.min(x)
     which.max(x)

Arguments:

       x: numeric vector, whose `min' or `max' is searched.

Value:

     an `integer' of length 1 or 0 (iff `x' has no non-`NA's) , giving
     the index of the first minimum or maximum respectively of `x'.

     If this extremum is unique (or empty), the result is the same (but
     more efficient) as  `which(x == min(x))' or `which(x == max(x))'
     respectively.

Author(s):

     Martin Maechler

See Also:

     `which', `max.col', `max', etc.

Examples:

     x <- c(1:4,0:5,11)
     which.min(x)
     which.max(x)

     data(presidents)
     presidents[1:30]
     range(presidents, na.rm = TRUE)
     which.min(presidents)# 28
     which.max(presidents)# 2

