afni_3dWinsor: AFNI 3dWinsor function

In neuroconductor/afnir: Wrapper Functions for 'AFNI' (Analysis of Functional 'NeuroImages')

Description

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

Usage

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

neuroconductor/afnir documentation built on May 22, 2021, 9:54 a.m.