How to calculate mean square error between points?

Hello everyone. Here I want to calculate the mean square error between the blue dots and the red dot. I'm putting the files. I can't form in my head how to do it. I would be glad if you help.

scatter(reshape(x_T_est1(all(x_T_est1,2),:), [1,numel(x_T_est1(all(x_T_est1,2),:))]), reshape(y_T_est1(all(y_T_est1,2),:), [1,numel(y_T_est1(all(y_T_est1,2),:))]), 'b', 'x'); hold on;
scatter(x_T, y_T, 'r', 'filled');

Answer 1

[David Hill]

load('x_T.mat');load('x_T_est1.mat');load('y_T.mat');load('y_T_est1.mat');
b=[reshape(x_T_est1(all(x_T_est1,2),:),[1,numel(x_T_est1(all(x_T_est1,2),:))]);...
    reshape(y_T_est1(all(y_T_est1,2),:),[1,numel(y_T_est1(all(y_T_est1,2),:))])]';
b=b(~isnan(b(:,1))&~isnan(b(:,2)),:);%you have some NANs in your arrays.
r=[x_T,y_T];
meanSquaredError=sum((b-r).^2)/length(b);

[studentmatlaber]

I could not run this code correctly. Could you help?

 b=[reshape(x_T_est1(all(x_T_est1,2),:);[1,numel(x_T_est1(all(x_T_est1,2),:))]),...
                                       ↑
Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched
delimiters.

[David Hill]

Changed it above. Just want b to be an array of your points [x,y].

[studentmatlaber]

I also included the file. I can't write them this way as a single point. If you know a way please let me know

[David Hill]

If your scatter plot is working, then the above code should work. I tried in on your attached files (except y_T_est1 not provide, so I set it equal to x_T_est1) and it worked. Not sure what you want to do with the nan values.

[studentmatlaber]

thank you