Description Usage Arguments Details Author(s) See Also Examples

Computes cumulative sums for each set of consecutively identical group levels.

1 | ```
cumSumGroup(x, group)
``` |

`x` |
Vector with doubles that should be cumulatively summed. |

`group` |
Vector with integers that identify group levels. |

Assumes that all entries, affiliated to a particular group level, are consecutive.

Kjetil R<c3><b8>ysland <[email protected]>

1 2 3 4 5 6 7 8 9 10 11 12 13 | ```
##---- Should be DIRECTLY executable !! ----
##-- ==> Define data, use random,
##-- or do help(data=index) for the standard data sets.
## The function is currently defined as
function (x, group)
{
if (length(x) != length(group))
stop("Length of x and group differs")
r <- .C("cumSumGroup", w = as.double(x), as.integer(length(x)),
as.integer(group))
return(r$w)
}
``` |

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