binned_sum implements fast tabulating for given
bins by calling c-code. It also returns the number of
NA's per bin. Please note that incorrect use of this
function may crash your R-session. the values of
bins must be between 1 and nbins and
may not contain NA. The values of x must be
between 1 and nlevels.binned_tabulate(x, bin, nbins = max(bin),
nlevels = nlevels(x))
## S3 method for class 'ff':
binned_tabulate(x, bin, nbins=max(bin),
nlevels=nlevels(x), ...)factor or integer vector with the
data to be tabulatedinteger vector with the bin number for
each data pointinteger maximum bin numberinteger number of levels used in xnumeric matrix where each row is a bin and each
column a level