MATLAB: Rempet

rempte

I have a matrix and a vector, I want to repmat them the same my mean is that if I change the first row of the matrix I want this also happen the same for the vector,

Best Answer

X=rand(4)
Y=rand(4,1)
Index=[2 3 4 1];
X=X(Index,:)
Y=Y(Index,:)

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MATLAB: How to perform fft

[moved from comments]

To remove the 0Hz-component from the analysis, use y=fft(x-mean(x));

MATLAB: If statement using vectors

You cannot use if like that to operate element-wise on arrays (read the if help to know what your code is actually doing). You could use a loop, but that would be pointlessly complex for this simple task.

Method one: indexing:

P_actual = P - 0.3*(T_m-T_s);
idx = T_m>T_s;
P_actual(~idx) = P(~idx)

Method two: max:

P_actual = P - 0.3*max(0,T_m-T_s)

I recommend using the max method.

Best Answer

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