| which.min {base} | R Documentation |
Determines the location, i.e., index of the (first) minimum or maximum of a numeric vector.
which.min(x) which.max(x)
x |
numeric (integer or double) vector, whose
|
Missing and NaN values are discarded.
an integer of length 1 or 0 (iff x has no
non-NAs), giving the index of the first minimum or
maximum respectively of x.
If this extremum is unique (or empty), the results are the same as
(but more efficient than) which(x == min(x)) or
which(x == max(x)) respectively.
Martin Maechler
Use arrayInd(), if you need array/matrix indices instead
of 1D vector ones.
which.is.max in package nnet differs in
breaking ties at random (and having a ‘fuzz’ in the definition
of ties).
x <- c(1:4,0:5,11) which.min(x) which.max(x) ## it *does* work with NA's present, by discarding them: presidents[1:30] range(presidents, na.rm = TRUE) which.min(presidents) # 28 which.max(presidents) # 2