Merge pull request #2338 from SasView/2337-sesans-residuals-plot-show…

…n-in-q-space-rather-than-real-space

fixed sesans residuals plots to show in real space rather than q space

src/sas/qtgui/Perspectives/Fitting/FittingUtilities.py

@@ -547,8 +547,12 @@ def residualsData1D(reference_data, current_data, weights):
     residuals.dxl = None
     residuals.dxw = None
     residuals.ytransform = 'y'
+    if reference_data.isSesans:
+        residuals.xtransform = 'x'
+        residuals.xaxis('\\rm{z} ', 'A')
     # For latter scale changes
-    residuals.xaxis('\\rm{Q} ', 'A^{-1}')
+    else:
+        residuals.xaxis('\\rm{Q} ', 'A^{-1}')
     residuals.yaxis('\\rm{Residuals} ', 'normalized')
 
     return residuals