How can I increase vector size of the output from 7 x 7 double to 30 x 7 double i.e how can I make a for-loop to repeat 30 times?
1 visualización (últimos 30 días)
Mostrar comentarios más antiguos
Dursman Mchabe
el 9 de Oct. de 2018
Comentada: Dursman Mchabe
el 9 de Oct. de 2018
Hi all, How can I increase the size of the output vector of the attached m-file (EulerMethod.m) from 7 x 7 double to 30 x 7 double. I actually need each variable in y0 to have 30 rows, that is, I need the for-loop to repeat 30 times. How can I do that? The file also calls other m-files, namely, Hion.m, C_Bulk.m , odes.m and Parameters.m, which are also attached.
Kind Regards Dursman
3 comentarios
Respuesta aceptada
Walter Roberson
el 9 de Oct. de 2018
You don't.
You initialized y0 to a 1x7 and then transpose it so that it is 7x1.
In your loop you call odes, which returns a 7x1. You transpose that to 1x7, and multiply by your time step, getting a 1x7.
Now you add the 7x1 y0 to the 1x7. In all releases before r2016b that would be an error. In R2016b and later there is the equivalent of bsxfun, so the results of adding the two with different orientations is 7x7 which is the output size you get.
Perhaps you want to do something more like
y(end+1, :) = y(end, :) + odes().' * Delta
1 comentario
Más respuestas (0)
Ver también
Categorías
Más información sobre Loops and Conditional Statements en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!