Mercurial > repos > public > sbplib
comparison +blockmatrix/isBlockmatrix.m @ 203:764438b52541 feature/grids
blockmatrix: Added functions to test for block matrcies and divisions.
| author | Jonatan Werpers <jonatan@werpers.com> |
|---|---|
| date | Wed, 15 Jun 2016 14:29:56 +0200 |
| parents | |
| children | a5f1b0267dba |
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| 202:e2fefb6f0746 | 203:764438b52541 |
|---|---|
| 1 function b = isBlockmatrix(bm) | |
| 2 if ~iscell(bm) | |
| 3 b = false; | |
| 4 return | |
| 5 end | |
| 6 | |
| 7 % Make sure all blocks are numerica matrices | |
| 8 for i = 1:length(bm) | |
| 9 if ~isnumeric(bm{i}) | |
| 10 b = false; | |
| 11 return | |
| 12 end | |
| 13 end | |
| 14 | |
| 15 [N,M] = size(bm); | |
| 16 % Make sure column dimensions agree | |
| 17 for i = 1:N | |
| 18 d = []; | |
| 19 for j = 1:M | |
| 20 d_ij = size(bm{i,j},1); | |
| 21 if d_ij == 0 | |
| 22 continue | |
| 23 end | |
| 24 | |
| 25 if isempty(d) | |
| 26 d = d_ij; | |
| 27 continue | |
| 28 end | |
| 29 | |
| 30 if d ~= d_ij | |
| 31 b = false; | |
| 32 return | |
| 33 end | |
| 34 end | |
| 35 end | |
| 36 | |
| 37 % Make sure row dimensions agree | |
| 38 for j = 1:M | |
| 39 d = []; | |
| 40 for i = 1:N | |
| 41 d_ij = size(bm{i,j},2); | |
| 42 if d_ij == 0 | |
| 43 continue | |
| 44 end | |
| 45 | |
| 46 if isempty(d) | |
| 47 d = d_ij; | |
| 48 continue | |
| 49 end | |
| 50 | |
| 51 if d ~= d_ij | |
| 52 b = false; | |
| 53 return | |
| 54 end | |
| 55 end | |
| 56 end | |
| 57 | |
| 58 b = true; | |
| 59 end |