Simulink Port Dimensions Error

2 次查看（过去 30 天）
Learning
Learning 2022-11-22
评论： VBBV 2022-11-23
Hello everyone, new to Simulink. I have constant A (dimension is 7*7) multiplied by T (dimension is 1). I also have constant block B (size is 7*2) multiplied by an input block Y (dimensions is 2). I am using matrix multiplied for A*T and for B*Y. Equation therefore is M = A*T + B*Y. The using sum block to add them and output is M. The error is “Error in port widths or dimensions. Invalid dimension has been specified for input pot1” any help would be appreciated and even rules on setting the correct port dimensions would be appreciated.

请先登录，再回答此问题。

回答（1 个）

VBBV
VBBV 2022-11-22
编辑：VBBV 2022-11-22
M = A.*T + B*Y %
  7 个评论
显示 5更早的评论
Learning
Learning 2022-11-22
Thanks for your response! For some reason I am still getting an error that the size do not match. I tried reshaping Y which is a 2*1 matrix using Simulink block reshape.
VBBV
VBBV 2022-11-23
Ran in:
Change the size of array Y from 2 x1 to 2 x7 as below
A = randi([0 7],7,7);
T = randi(1);
B = randi([0 7],7,2);
Y = randi([0 2],2,1) % change the size of Y (by zero padding)
Y = 2×1
1 1
Y = [Y(1) 0 0 0 0 0 0;Y(2) 0 0 0 0 0 0] % change it 2 x 7 by adding zeros
Y = 2×7
1 0 0 0 0 0 0 1 0 0 0 0 0 0
M = A*T + B*Y %
M = 7×7
5 7 4 6 7 6 4 5 5 6 0 7 0 6 13 5 6 3 4 6 1 16 6 1 4 0 1 6 14 7 0 7 1 3 0 18 1 3 0 3 2 3 10 3 4 3 5 3 7

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Simulink Functions 的更多信息

标签

产品


版本

R2019b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by