Compute max of values binned by a second variable

Compute max of values binned by a second variable

byMaxFf(values, bins)

Arguments

values	An ff object containing the numeric values to take the max of.
bins	An ff object containing the numeric values to bin by.

Examples

values <- ff::as.ff(c(1, 1, 2, 2, 1))
bins <- ff::as.ff(c(1, 1, 1, 2, 2))
byMaxFf(values, bins)
#>   bins maxs
#> 1    1    2
#> 2    2    2