AFNI 3dWinsor function

Source: R/afni_3dWinsor.R

Wrapper for AFNI 3dWinsor function, which applies a 3D 'Winsorizing' filter.

afni_3dWinsor(file, radius = 1.5, trim = c(0.2, 0.8),
  repeat_filter = 1, keepzero = FALSE, lower_threshold = NULL,
  mask = NULL, opts = "", retimg = TRUE, ...)

Winsor(...)

winsor(...)

Arguments

file

nifti object or NIfTI filename. If more than one is given, they are given names of the letters up to z.
radius

include all points within 'distance' in the operation, where distance is defined as sqrt(i*i+j*j+k*k), and (i,j,k) are voxel index offsets
trim

Quantiles for the top and bottom of winsorize filter
repeat_filter

repeat filter nn times. If nn < 0, means to repeat filter until less than abs(n) voxels change
keepzero

don't filter voxels that are zero
lower_threshold

set voxels at or below lower_threshold to zero
mask

use a mask dataset - voxels NOT in the mask won't be filtered
opts

Additional options passed to 3dWinsor
retimg

Should a nifti be returned?
...

additional arguments to afni_3dAFNItoNIFTI

Value

Output filename of the image or a nifti image, depending on retimg