Label Connected Clusters of Certain Size

Get Cluster of certain size from spm_bwlabel

bwconncomp(
  infile,
  outfile = NULL,
  retimg = TRUE,
  conn = 26,
  reorient = FALSE,
  spmdir = spm_dir(),
  verbose = TRUE,
  install_dir = NULL
)

Arguments

infile

input filename
outfile

output filename
retimg

Return the image instead of matlab output
conn

Connections to be passed to MATLAB's bwconncomp
reorient

If retimg, then this argument is passed to readNIfTI
spmdir

(character) path for SPM12. If NULL, assumes SPM12 is in matlabpath.
verbose

Print Diagnostics
install_dir

directory to download SPM12

Value

Name of output file or nifti object, depending on retimg

Examples

library(neurobase)

#> Loading required package: oro.nifti
#> oro.nifti 0.11.0
set.seed(1234)
dims = c(30, 30, 10)
arr = array(rnorm(prod(dims)), dim = dims)
nim = nifti(arr)
mask = datatyper(nim > 1)
if (FALSE) {
cc = bwconncomp(mask)
tab = table(c(cc))
}