padarray

B = padarray(A, padsize; padval=nothing)

Pad matrix A with an amount of padding in each dimension specified by padsize.

Args

• A: GMTimage, GMTgrid or Matrix to pad.

• padsize: Amount of padding in each dimension. It can be a scalar or a array of length equal to 2 (only matrices are supported).

Kwargs

• padval: If not specified, A is padded with a replication of the first/last row and column, otherwise padval specifies a constant value to use for padded elements. padval can take the value -Inf or Inf, in which case the smallest or largest representable value of the type of A is used, respectively.

Return

Padded array of same type as input.

Example

A = [1 2; 3 4];
B = padarray(A,1)
4×4 Matrix{Int64}:
 1  1  2  2
 1  1  2  2
 3  3  4  4
 3  3  4  4