Re: [Rd] matrix bands

2011-08-26 Thread Martin Maechler
> Jeremy David Silver > on Fri, 26 Aug 2011 15:08:03 +0200 writes: > Thanks for the suggestion, Martin! I looked at both > Matrix::band and Matrix::bandSparse. Maybe I misunderstand the > help pages and the examples, but from what I can see neither of > them provides

Re: [Rd] matrix bands

2011-08-26 Thread Jeremy David Silver
Thanks for the suggestion, Martin! I looked at both Matrix::band and Matrix::bandSparse. Maybe I misunderstand the help pages and the examples, but from what I can see neither of them provides the functionality I was looking for. For the getter version of the function I was looking for, I can

Re: [Rd] matrix bands

2011-08-26 Thread Martin Maechler
> Jeremy David Silver > on Fri, 26 Aug 2011 13:23:43 +0200 writes: > Dear R developers, I was looking for a function analogous > to base::diag() for getting and setting bands of a > matrix. The closest I could find was Matrix::band(), but > this was not exactly what I

[Rd] matrix bands

2011-08-26 Thread Jeremy David Silver
Dear R developers, I was looking for a function analogous to base::diag() for getting and setting bands of a matrix. The closest I could find was Matrix::band(), but this was not exactly what I wanted for two reasons. Firstly, Matrix::band() returns a matrix rather than just the specified band