R: Cumulative Sums, Products, and Extremes

cumsum {base}

R Documentation

Cumulative Sums, Products, and Extremes

Returns a vector whose elements are the cumulative sums, products, minima or maxima of the elements of the argument.

cumsum(x)
cumprod(x)
cummax(x)
cummin(x)

`x`	a numeric object.

An NA value in x causes the corresponding and following elements of the return value to be NA.

cumsum(1:10)
cumprod(1:10)
cummin(c(3:1, 2:0, 4:2))
cummax(c(3:1, 2:0, 4:2))