For loop for correlation - linear indexing

Question

Simon Wittner 2021-9-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1461939-for-loop-for-correlation-linear-indexing

回答： the cyclist 2021-9-27

I have a large dataset (4078x1034) where I need to find the corrcoef, keeping one column (1) constant and testing it with the other columns, starting at column 11.

Matlab tells me this error:

Error using corrcoef (line 114)

Subscripting a table using linear indexing (one subscript) or multidimensional indexing (three or more subscripts) is not supported. Use a row subscript and a variable subscript.

How can i fix this?

A = readtable('train_v1.csv'); 
e = A{:,1}; %constant column
S = size(A);
K = zeros(1,(S(1,2)-11)); %preparing the output matrix
for i = 11:S(1,2)
    tmp = corrcoef(e,A(:,i));
    K(i-10) = tmp;
end
disp(K)