rray_arith: Arithmetic operations
In rray: Simple Arrays

Description Usage Arguments Details Value Examples

These functions provide the implementations for their underlying infix operators (i.e. rray_add() powers +). All operators apply broadcasting to their input.

x %b+% y

rray_add(x, y)

x %b-% y

rray_subtract(x, y)

x %b*% y

rray_multiply(x, y)

x %b/% y

rray_divide(x, y)

x %b^% y

rray_pow(x, y)

rray_identity(x)

rray_opposite(x)

x, y

A pair of vectors.

In case you want to apply arithmetic operations with broadcasting to purely base R objects using infix operators, custom infix functions have been exported, such as %b+%, which will perform addition with broadcasting no matter what type the input is.

The value of the arithmetic operation, with dimensions identical to the common dimensions of the input.

library(magrittr)

x <- rray(1:8, c(2, 2, 2)) %>%
  rray_set_row_names(c("r1", "r2")) %>%
  rray_set_col_names(c("c1", "c2"))

y <- matrix(1:2, nrow = 1)

# All arithmetic functions are applied with broadcasting
rray_add(x, y)

# And the power `+` when any underlying input
# is an rray
x + y

# If you happen to only have base R matrices/arrays
# you can use `rray_add()` or `%b+%` to get the
# broadcasting behavior
rray_add(y, matrix(1:2))

y %b+% matrix(1:2)