Error in port widths or dimensions Error.

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My input is a time history which is a 1x3001 double. How can I solve that error? Thanks.
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Mathieu NOE
Mathieu NOE on 31 May 2021
hello
you're using the wrong block for the input; here it's like you want to have all the 3001 values of the input vector feeding at every time stamp the system; this is not waht you want; you want to take one value per time stamp
look at the simulink demo files
Onat Aytac
Onat Aytac on 1 Jun 2021
I couldn't figure out which block to use as input. I have tried to add timestep block between the input and the summation block but it did not work.

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Accepted Answer

Fangjun Jiang
Fangjun Jiang on 1 Jun 2021
If your t=sin(0:0.01:30), which is 1x3001 double, you need to make it a column vector and then use the "From Workspace" block.
You also need to specify the time steps for this data, for example, TimeStep=0:0.01:30.
Then specify the value of the "From Workspace" block as [TimeStep', t']
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wei bin
wei bin on 21 Apr 2022
Hello, may I know you? I'm a student of Shenyang Architecture and Architecture University. My name is Wei bin. Today, I saw the answer to your question and solved the problem I've been wondering for several days. Can I know the you, my email weibin@stu.sjzu.edu.cn ; My wechat 18895374281;

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