timeSeries (version 3022.101.2)

colCum: Cumulated Column Statistics

Description

Functions to compute cumulative column statistics.

Usage

"colCumsums"(x, na.rm = FALSE, ...)
"colCummaxs"(x, na.rm = FALSE, ...)
"colCummins"(x, na.rm = FALSE, ...)
"colCumprods"(x, na.rm = FALSE, ...)
"colCumreturns"(x, method = c("geometric", "simple"), na.rm = FALSE, ...)

Arguments

method

a character string to indicate if geometric (TRUE) or simple (FALSE) returns should be computed.

na.rm

a logical. Should missing values be removed?

x

a time series, may be an object of class "matrix", or "timeSeries".

...

arguments to be passed.

Value

all functions return an S4 object of class timeSeries.

Examples

## Simulated Return Data -
   x = matrix(rnorm(24), ncol = 2)
     
## Cumulative Sums Column by Column  -
   colCumsums(x)