st: novice Mata question

[Kit Baum <baum@bc.edu>]

Ade said
I wanted to write a function in Mata that deletes rows in a column
vector (or matrix) that contain 0.


The simplest sort of solution ( in English ) would be
matrix temp  = matrix temp taking out one row

but this assignment obviously can't be done because of conformability  
errors.

Do I need to use pointers to do this?

Or alternatively how can I delete a matrix in Mata so that I can
create an intermediate matrix?


You mean something like

: adrian=(1,0,3,4,0,2,9,0,0,1)

: pruned = select(adrian,adrian)

: pruned
       1   2   3   4   5   6
    +-------------------------+
  1 |  1   3   4   2   9   1  |
    +-------------------------+


Kit Baum, Boston College Economics
http://ideas.repec.org/e/pba1.html
An Introduction to Modern Econometrics Using Stata:
http://www.stata-press.com/books/imeus.html


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