cumsum_g_no_NA.Rd
Compute per-group cumulative sums
cumsum_g_no_NA(col, first_indices)
col | vector to cumulative sum |
---|---|
first_indices | numeric index of first index in each group |
per-group cumulative sum
v <- c(2, 3, 1, 4, 5) fi <- c(1, 1, 3, 3, 3) cumsum_g_no_NA(v, fi)#> [1] 2 5 1 5 10