The calculated MAgPIE object in the case that append is set to
FALSE. Otherwise nothing is returned (as x is appended in place)
Arguments
x
MAgPIE object
f
A formula describing the calculation that should be performed
dim
The dimension in which the manipulation should take place. If set
to NULL function tries to detect the dimension automatically.
append
If set to TRUE the result will be appended to x, otherwise the
result will be returned.
Author
Jan Philipp Dietrich
Details
This functions only work for MAgPIE objects with named dimensions as the
dimension name (set_name) has to be used to indicate in which dimension the
entries should be searched for!