Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
Drexel University or The Math Forum.


dpb
Posts:
8,181
Registered:
6/7/07


Re: problem with matrix
Posted:
Apr 8, 2013 1:37 PM


On 4/8/2013 12:24 PM, Bruno Luong wrote: > OP needs to *plot* the 100 last data, in the order. So the data need to > be rearranged. >
Not how I understood his simulationlooks to me like he's using each column as the results of an iteration and just wants to save the last 100 iterations as the columns of an array.
If so, there's no reason not to do as the sample I posted earlier that doesn't move any data unless wants to save those results in chronological orderthen he can reorder at the end before the saving operation once instead of every iteration.
> Whereas he uses circlshift or indexing modulo, then the data that get > moved in the memory. > > At the end there is no saving compared to the strategy where the data > get shifted by user: > > Data = [Data(:,2:end) NewData].
If that's what he's got to do but not how I read his posting.




