Design Matrix set up

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Emilee Burris 2019-3-21

评论： Walter Roberson 2019-3-23

I am creating a desgin matrix for a data set and I have this equation

y(t)=a1 + a2 exp(-(t-0.0001)/50^2) + a3 sin(2π(60)t)

When I am entering it into matlab I keep getting error and I don't know what I am doing wrong.

Code:

X=(2*pi*(60)*t);
A = [ones(length(t),1) exp(-((t-0.0001)/50).^2)' sin(2*pi*(60)*t)];

Output:

Error using horzcat

Dimensions of arrays being concatenated are not consistent.

Emilee Burris 2019-3-23

t is a vector of values

Walter Roberson 2019-3-23

Before the assignment to X, insert

t = t(:);

That should fix the problem.

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