How to plot this ?

Question

Priya 2014-2-16

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/116334-how-to-plot-this

评论： Priya 2014-2-16

Could anyone please assist me on how to plot the below piece of code,

residsumsq = norm(simout_b(:,1)-simout_a(:,1),2)^2;
tsumsq = norm(simout_b(:,1)-mean(simout_b(:,1)),2)^2;
R2 = 1-(residsumsq/tsumsq);

Also how to display the R square value on running the mfile. Please help.

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Answer 1

Azzi Abdelmalek 2014-2-16

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/116334-how-to-plot-this#answer_124545

在 MATLAB Online 中打开

Your can't plot your code.

%example

simout_a=rand(10,2);
simout_b=rand(10,2);
residsumsq = norm(simout_b(:,1)-simout_a(:,1),2)^2;
tsumsq = norm(simout_b(:,1)-mean(simout_b(:,1)),2)^2;
R2 = 1-(residsumsq/tsumsq);

Your result are all scalar

Can you explain what you need to plot? maybe

plot(simout_a(:,1)); 
hold on;
plot(simout_b(:,1));
hold off

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Priya 2014-2-16

Thanks for your reply. Actually I wanted to get the pictorial representation of "R2 = 1-(residsumsq/tsumsq)" . Thought I could see the Rsquare fit in the form of a plot.

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