| cumsum | R Documentation |
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 or complex (not |
These are generic functions: methods can be defined for themindividually or via theMath group generic.
A vector of the same length and type asx (after coercion),except thatcumprod returns a numeric vector for integer input(for consistency with*). Names are preserved.
AnNA value inx causes the corresponding and followingelements of the return value to beNA, as does integer overflowincumsum (with a warning).
cumsum andcumprod are S4 generic functions:methods can be defined for them individually or via theMath group generic.cummax andcummin are individually S4 generic functions.
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988)The New S Language.Wadsworth & Brooks/Cole. (cumsum only.)
cumsum(1:10)cumprod(1:10)cummin(c(3:1, 2:0, 4:2))cummax(c(3:1, 2:0, 4:2))
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