I take it that st_subview() doesn't play by the same rules when the referenced
matrix is a view created by st_view() as when it is a Mata matrix. With the
latter, st_subview() behaves like select() with a second selection dimension.
Short of creating a set of temporary Stata variables as a buffer in which to
store the Mata matrix, is there a way to get st_subview() to behave toward a
native Mata matrix as it does toward a matrix created by st_view()?
Absent that, is there a way to create the analogue of an updatable view in SQL
for a Mata real matrix?
Joseph Coveney
: stata("quietly set obs 3")
: stata("generate byte a = 1")
: M = .
: st_view(M, ., 1, 0)
: Target = .
: st_subview(Target, M, 1, 1)
: Target[., .] = 10
: M
1
+------+
1 | 10 |
2 | 1 |
3 | 1 |
+------+
: M = J(3, 1, 1)
: st_subview(Target, M, 1, 1)
: Target[., .] = 10
: M
1
+-----+
1 | 1 |
2 | 1 |
3 | 1 |
+-----+
: end
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
