Modified tpattern input to allow for strings (paths) and not just the 'alt-z' parameters

Author: pintohutch

nipype/interfaces/afni/preprocess.py

@@ -111,10 +111,13 @@ class TShiftInputSpec(AFNICommandInputSpec):
                          desc='different interpolation methods (see 3dTShift for details)' +
                          ' default = Fourier', argstr='-%s')
 
-    tpattern = traits.Enum(('alt+z', 'alt+z2', 'alt-z',
-                            'alt-z2', 'seq+z', 'seq-z'),
-                           desc='use specified slice time pattern rather than one in header',
-                           argstr='-tpattern %s')
+    tpattern = traits.Str(desc='use specified slice time pattern rather than one in header',
+                                    argstr='-tpattern %s')
+
+#   tpattern = traits.Enum(('alt+z', 'alt+z2', 'alt-z',
+#                           'alt-z2', 'seq+z', 'seq-z'),
+#                          desc='use specified slice time pattern rather than one in header',
+#                          argstr='-tpattern %s')
 
     rlt = traits.Bool(desc='Before shifting, remove the mean and linear trend',
                       argstr="-rlt")