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2 changes: 2 additions & 0 deletions nipype/interfaces/fsl/preprocess.py
Original file line number Diff line number Diff line change
Expand Up @@ -403,6 +403,8 @@ class FLIRTInputSpec(FSLCommandInputSpec):
in_matrix_file = File(argstr='-init %s', desc='input 4x4 affine matrix')
apply_xfm = traits.Bool(argstr='-applyxfm', requires=['in_matrix_file'],
desc='apply transformation supplied by in_matrix_file')
apply_isoxfm = traits.Float(argstr='-applyisoxfm %f', xor=['apply_xfm'],
desc='as applyxfm but forces isotropic resampling')
datatype = traits.Enum('char', 'short', 'int', 'float', 'double',
argstr='-datatype %s',
desc='force output data type')
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