ifftshift {mrbsizeR} | R Documentation |
Inverse FFT shift of a 2d matrix.
Description
ifftshift
is an R equivalent to the Matlab function ifftshift
applied on matrices. For more information about ifftshift
see
the Matlab documentation.
Usage
ifftshift(inputMatrix, dimension = -1)
Arguments
inputMatrix |
Matrix to be swapped. |
dimension |
Which swap should be performed?
|
Details
ifftshift
is the inverse function to fftshift
. For more
information see the details of fftshift
Value
Swapped matrix.
Examples
set.seed(987)
sampleMat <- matrix(sample(1:10, size = 25, replace = TRUE), nrow = 5)
# Swap halves along the rows:
ifftshift(sampleMat, dimension = 1)
# Swap halves along the columns:
ifftshift(sampleMat, dimension = 2)
# Swap first quadrant with third and second quadrant with fourth:
ifftshift(sampleMat, dimension = -1)
[Package mrbsizeR version 1.3 Index]