Error in port widths or dimensions Error.

My input is a time history which is a 1x3001 double. How can I solve that error? Thanks.

[Mathieu NOE]

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]

Hello @Mathieu NOE,

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.

Answer 1

[Fangjun Jiang]

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']

[Onat Aytac]

Thanks!

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