This is documented in the reference manual, but was not working.
The change consists in having check.m returning oo_ as 1st output argument, and
having the preprocessor generating the corresponding code.

  dynDates object. Duplicate dates are permitted and not checked for.

  previous commit

  dynDates; dynDate can be initialized with a single dynDate

Closes: #292

Following syntax:

ts{'GDP_US'} = ts.{'GDP_US'}.log

applies the log function to the variable GDP_US in the dynSeries object ts. Note that this works on an arbitrary number of variables and that regular expressions can be used (see previous commits).

The following syntax

A.name{i}

where A is a dynSeries object, returns the name of the i-th variable in A.

Bug introduced in c121aa14