OpasnetUtils (version 1.1.0)

oapply: Apply for ovariables

Description

Use tapply on the output slot

Usage

oapply(X, INDEX = NULL, FUN = NULL, cols = NULL, ..., simplify = TRUE)

Arguments

X

an ovariable

INDEX

list of factors, like tapply

FUN

function to apply

cols

names of columns to be removed (reverse INDEX)

...

optional arguments to FUN

simplify

like tapply

Value

• Returns an ovariable, with output slot tapplied and marginal adjusted accordingly.

Details

See also: http://en.opasnet.org/

Examples

a <- new("ovariable", name = "a", output = data.frame(A = c("a", "a", "b", "b"), 
    B = c("1", "2", "1", "2"), aResult = 1:4), marginal = c(TRUE, TRUE, FALSE))
oapply(a, FUN = sum, cols = "A")
oapply(a, a@output[c("A")], sum)