On Thursday, September 4, 2003, at 02:33 AM, John wrote:
I've got two related questions regarding column and row names.
(1) How can I replace the 'jth' column name only?
(2) How can I save as a macro the 1st j column names from a matrix?
Many thanks.
- --John
Answering in reverse order (see [p] macro extended functions):
. qui regress price mpg headroom trunk
. mat v=e(V)
. local names: colnames v
. di "`names'"
mpg headroom trunk _cons
. local names: subinstr local names "trunk" "elephant"
. di "`names'"
mpg headroom elephant _cons
. mat coln v= `names'
. mat list v
symmetric v[4,4]
mpg headroom elephant _cons
mpg 4260.8406
headroom 1493.2491 234750.02
trunk 3156.2153 -29562.132 11500.405
_cons -138633.33 -327787.03 -136940.48 5910415
Kit
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