Evaluate expression on volume files — volume_math • wbcmd

Wraps wb_command -volume-math to perform element-wise mathematical operations on volume files at each voxel.

Usage

volume_math(
  expression,
  volume_out,
  var,
  fixnan = FALSE,
  verbose = get_wb_verbosity()
)

Arguments

expression: Math expression string (e.g. "(x - y) / y * 100").
volume_out: Path for the output volume file.
var: Named list of input volume file paths. Names correspond to variable names used in expression.
fixnan: Logical; replace NaN results with 0?
verbose: Logical; print command output?

Value

The result of the underlying wb_cmd() call.

Examples

if (FALSE) { # \dontrun{
volume_math(
  "clamp(x, 0, 100)",
  volume_out = "clamped.nii.gz",
  var = list(x = "input.nii.gz")
)
} # }