In some functions such as Consist_Trend() or Corr() it was not an option to set dat_dim = NULL, while other functions such as ACC() or Clim() it was allowed (see Issue #67). The adjustment has been done in one hand by adding a conditional for this parameter and in the other hand by adding this option in functions documentation.
List of modified functions in this Merge Request that allow dat_dim = NULL:
- Corr()
- RMS()
- RMSSS()
- UltimateBrier()
- Ano_CrossValid()