How do I make this code into a function I can't manipulate=?

Question

Emma 2021-3-4

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/763081-how-do-i-make-this-code-into-a-function-i-can-t-manipulate

评论： Rik 2021-3-9

How do i make this code into a function?

(This code creates a graph with randomly plotted ellipses)

rng(675382) %regenerates the same values for randn

N = 20;

for R = 1:N %for loop to repeat 10 times

t = linspace(0,2*pi); % t defined angle??? not sure

xc = randn; %defines one of axis as random

x = xc + randn*cos(t);

yc = randn;

y = yc + randn*sin(t);

plot(x,y)

patch(x,y,rand)

hold on %puts all ellipses on same graph

end

My end goal is to rotate the fucntion with a rotation matrix.

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Rik 2021-3-4

What exactly do you want to rotate? You can't rotate a Matlab function, and your code doesn't seem to describe a mathematical function.

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Answer 1

Monisha Nalluru 2021-3-9

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https://ww2.mathworks.cn/matlabcentral/answers/763081-how-do-i-make-this-code-into-a-function-i-can-t-manipulate#answer_643016

在 MATLAB Online 中打开

From my understanding you wanted to get x,y matrix after performing the operations from a function

These can be done by adding return type to function

function [X,Y] = generatematrix(N)
    X=[];
    Y=[];
    for R = 1:N             %for loop to repeat N times 
        t = linspace(0,2*pi);   
        xc = randn;             
        x = xc + randn*cos(t);        
        yc = randn;
        y = yc + randn*sin(t);
        X=[X;x];
        Y=[Y;y];
        plot(x,y)
        patch(x,y,rand)
        hold on                 
    end 
end