build_ind_val_dsets bugfix

Fixed label creation if not provided
Minor formatting changes to be_utils and be_loop

pycroscopy/analysis/utils/be_loop.py

@@ -260,7 +260,7 @@ def loop_fit_function(vdc, coef_vec):
     loop_eval : 1D numpy array
         Loop values
     """
-    
+
     a = coef_vec[:5]
     b = coef_vec[5:]
     d = 1000

pycroscopy/io/translators/df_utils/be_utils.py

@@ -763,6 +763,7 @@ def createSpecVals(udvs_mat, spec_inds, bin_freqs, bin_wfm_type, parm_dict,
             iSpecVals, inSpecVals = __FindSpecValIndices(udvs_mat, spec_inds)   
             
             return __BEPSDC(udvs_mat,inSpecVals, bin_freqs, bin_wfm_type, parm_dict)
+
         elif mode == 'AC modulation mode with time reversal':
             """ 
             First we call the FindSpecVals function to get the columns in UDVS of  

pycroscopy/io/translators/utils.py

@@ -225,7 +225,7 @@ def build_ind_val_dsets(dimensions, is_spectral=True, steps=None, initial_values
         print(initial_values)
 
     if labels is None:
-        labels = ['' for _ in len(dimensions)]
+        labels = ['' for _ in dimensions]
     elif len(labels) != len(dimensions):
         raise ValueError('The arrays for labels and dimension sizes must be the same.')