broadcast (version 0.1.7)

bc_dim: Predict Broadcasted Dimensions

Description

bc_dim(x, y) gives the dimensions an array would have, as the result of an broadcasted binary element-wise operation between 2 arrays x and y.

Usage

bc_dim(x, y)

Value

Returns an integer vector giving the broadcasted dimension sizes of the result, or the length of the result if its dimensions will be NULL.

Arguments

x, y

an atomic or recursive array.

Examples

x.dim <- c(4:2)
x.len <- prod(x.dim)
x.data <- sample(c(TRUE, FALSE, NA), x.len, TRUE)
x <- array(x.data, x.dim)
y <- array(1:50, c(4,1,1))

dim(bc.b(x, y, "&")) == bc_dim(x, y)
dim(bc.b(x, y, "|")) == bc_dim(x, y)