Expansion means here that the dimensions of x are expanded acordingly to
ref. Please note that this is really only about expansion. In the case that
one dimension of ref is smaller than of x nothing happens with this
dimension. At the moment magpie_expand is only internally available in the
magclass library
You can influence the verbosity of this function by setting the option
"magclass.verbosity". By default verbosity is set to 2 which means that
warnings as well as notes are returned. Setting verbosity to 1 means that
only warnings are returned but no notes. This is done by
options(verbosity.level=1)
Currently magpie_expand is prepared to be updated to a newer version. By default the old setup is
currently active. To switch to the new setup you have to set options(magclass_version=2)
.
By default expansion is based on the elements in a dimension ignoring the set name of the dimension.
To expand based on set names instead of contents (recommended) you can switch
options(magclass_setMatching=TRUE)
.