Merge pull request #770 from mick-d/master

Gradnonlin option added to xfibers

Author: satra

nipype/interfaces/fsl/dti.py

@@ -776,6 +776,7 @@ def _gen_filename(self, name):
 class XFibresInputSpec(FSLCommandInputSpec):
     dwi = File(exists=True, argstr="--data=%s", mandatory=True)
     mask = File(exists=True, argstr="--mask=%s", mandatory=True)
+    gradnonlin = File(exists=True, argstr="--gradnonlin=%s")
     bvecs = File(exists=True, argstr="--bvecs=%s", mandatory=True)
     bvals = File(exists=True, argstr="--bvals=%s", mandatory=True)
     logdir = Directory("logdir", argstr="--logdir=%s", usedefault=True)

nipype/interfaces/fsl/tests/test_auto_XFibres.py

@@ -29,6 +29,8 @@ def test_XFibres_inputs():
     ),
     fudge=dict(argstr='--fudge=%d',
     ),
+    gradnonlin=dict(argstr='--gradnonlin=%s',
+    ),
     ignore_exception=dict(nohash=True,
     usedefault=True,
     ),