- checkdatabaseforinversion (adds auxiliary variables in database and performs various checks).
- calibrateresiduals (compute the residuals).
- Also updated dseries submodule:
+ If 0 is passed as an argument to lag or lead, then these methods do not change the object, ie o.lag(0)==o. This change is
necessary for defining the auxiliary variables in checkdatabaseforinversion.
+ Completed X13 interface.
+ Added new members ops (whick keep track of all the transformations on the variables) and tags.