Re: [Gretl-devel] Preserve row and col names of a matrix after functions
Am 02.11.2016 um 14:47 schrieb Riccardo (Jack) Lucchetti:
While we're on the subject:
You recently have a tendency to use this "speaking of which" phrase to
actually do a Monty-Python-esque "and now for something completely
different" ...
brouht up the fact that it's not immediate, in Hansl, to delete
certain
row/columns from a matrix.
Yeah, by coincidence I just answered this (old) question yesterday on
Stackexchange
(http://stackoverflow.com/questions/37242922/deleting-a-column-in-hansl).
but I wouldn't be averse to introducing a function pair like
killcol(X,
e) and killrow(X, e). Opinions?
First, it would be an improvement. Second, if at all possible, I would
favor some clever extension of the matrix indexing apparatus. For
example (just an example, no claim of optimality), X[-3, -2] might
return the matrix X without the 3rd row and the 2nd column.
cheers,
sven