Dear all, how to transform a square matrix to a diagonal matrix using commands? for example, we have A={2,1;1,3}, how can I get a matrix B={2,0;0,3}?

thank you very much! By the way, how to get the diagonal matrix from vector diag(A)? 2013/12/13 Sven Schreiber <svetosch(a)gmx.net&gt; > Am 13.12.2013 16:00, schrieb Qi Shi: > > Dear all, > > > > how to transform a square matrix to a diagonal matrix using commands? > > for example, we have A={2,1;1,3}, how can I get a matrix B={2,0;0,3}? > > > > For example: > > diag(A)**ones(1,cols(A)) .* I(cols(A)) > > I'm not guaranteeing that this is the most elegant way, but in general > you should probably think about whether extracting diag(A) isn't enough > for your purposes, because it contains the same information. > > -sven > _______________________________________________ > Gretl-users mailing list > Gretl-users(a)lists.wfu.edu > http://lists.wfu.edu/mailman/listinfo/gretl-users >

Dear all, how to transform a square matrix to a diagonal matrix using commands? for example, we have A={2,1;1,3}, how can I get a matrix B={2,0;0,3}?

Dear all, how to transform a square matrix to a diagonal matrix using commands? for example, we have A={2,1;1,3}, how can I get a matrix B={2,0;0,3}? thanks! _______________________________________________ Gretl-users mailing list Gretl-users(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-users