aperm_vector_to_array: Permute a linear vector of data into an R array

In ctypesio: Read and Write Standard 'C' Types from Files, Connections and Raw Vectors

Permute a linear vector of data into an R array

Description

Permute a linear vector of data into an R array

Usage

aperm_vector_to_array(x, src, flipy = FALSE, simplify_matrix = TRUE)

Arguments

x	vector
src	Specification of source dimensions in the order of presentation in the source data. This must a named integer vector with the names "planes", "rows", "cols" (and their corresponding sizes) in the order in which they occur in the data. The first named element must always be "planes". Use planes = 1 to indicate that this is matrix data.
flipy	flip the array vertically. Default: FALSE
simplify_matrix	If the resulting array only has a single plane, should this be simplified to a matrix? Default: TRUE

Value

array or matrix

See Also

Other data permutation functions: aperm_array_to_vector(), flip_endian()

Examples

# Convert a vector of packed RGB data to an array with 3 planes
x <- c(
  'r0', 'g0', 'b0',   'r1', 'g1', 'b1',   'r2', 'g2', 'b2',   
  'r3', 'g3', 'b3',   'r4', 'g4', 'b4',   'r5', 'g5', 'b5'
)
aperm_vector_to_array(x, src = c(planes = 3, cols = 3, rows = 2))

ctypesio documentation built on April 3, 2025, 7:28 p.m.