Broadcast to a new dimension

Broadcasts the dimension of the object to a new dimension.

Usage

broadcast(x, dim_names = NULL, ...)

# S3 method for default
broadcast(x, dim_names = NULL, ...)

# S3 method for ddf_col
broadcast(x, dim_names, ...)

# S3 method for tbl_ddf
broadcast(x, dim_names, ...)

Arguments

x

A dibble, vector, or array.

dim_names

A character vector or list of dimension names.

...

Unused, for extensibility.

Value

A dibble.

Details

Operations between dibbles are automatically broadcasted, but for safety reasons, warnings are issued. broadcast() can suppress the warnings if dim_names matches the dimension of x.

Examples

x <- broadcast(1:2,
               list(axis1 = letters[1:2]))
y <- broadcast(1:3,
               list(axis2 = letters[1:3]))
broadcast(x * y, c("axis1", "axis2"))
#> # A dibble:   6
#> # Dimensions: axis1 [2], axis2 [3]
#>   axis1 axis2     .
#>   <chr> <chr> <int>
#> 1 a     a         1
#> 2 a     b         2
#> 3 a     c         3
#> 4 b     a         2
#> 5 b     b         4
#> 6 b     c         6