How to make M×N matrix in matlab function simulink

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Rabe24 2022-6-23

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评论： Rabe24 2022-6-24

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I make this code in matlab function simulink.

I set a sampling time and a simulation time, 0.001s and 10.0s.

I wanted a parameter, p(10001×100)(time×H), whose 100 is a roop number.

However, the parameter p was (1000100×100). The row was also set 100 times, like a double loop.

How can i fix them in simulink?

Below is the code in matlab function simlink.

The paramater input is (10001×1).

function p  = fcn(input)
H=100;
dh=0.1;
p=zeros(H);
for r=1:1:H
    p(r)=r*dh;
end
end

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dpb 2022-6-23

在 MATLAB Online 中打开

p=zeros(H);

creates a 2D array of zeros HxH. Is that what was intended/wanted?

Your function doesn't ever use the argument variable input?

The loop as written will execute 100 times and set the linear addressing element r (1:100) only; since MATLAB is column-storage major, that will set the first column of p and leave the other 99 as zeros.

That result could be more efficienty be code in MATLAB using array syntax as

function p  = fcn(input)
  H=100;
  dh=0.1;
  p=dh*[1:H];
end

which still doesn't use the argument variable so also is probably not what is intended.

It's not clear to me from the description the exact result wanted; can you use a much smaller size of arrays (say 10 elements or so instead of 10001) and show an actual input and what the output would be for it?

Rabe24 2022-6-24