Using fit inside a loop

Question

Jaime De La Mota Sanchis 2021-9-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1453139-using-fit-inside-a-loop

评论： Jaime De La Mota Sanchis 2021-9-14

I have constructed a for loop in which I save a set of XY positions and a measured windspeed field as:

for i=1:50
    windX_in_the_node=U(:,:,i);
    windX_in_the_node_vector=reshape(windX_in_the_node,size(mediaU,1),1);
    matriz_a_enviarX_1_of_50=zeros(size(mediaU,1), 3);
    matriz_a_enviarX_1_of_50(:,1:2)=positions;
    matriz_a_enviarX_1_of_50(:,3)=windX_in_the_node_vector;
    filenameX = sprintf('Xdata_%d_of_50', i);
     save(filenameX, 'matriz_a_enviarX_1_of_50')
end

Now, I am looking for a way of also saving a fit of said data using fit. I am using the example code

sf = fit([x, y],z,'poly23')

changed as

sf = fit([positions(:,1), positions(:,2)],windX_in_the_node_vector,'poly23')

however, if I try to put it inside of the for loop simply writing sf(i) =... I get an error. Can I also automate this use of fit or do I need to do this 50 times by hand?

Best regards.

Jaime.