Matrix compare and unkonw relationships to find

You can use “corr()” function to find the relationship between columns of 2 matrices. Here, as you want to find the correlation between rows, you can transpose both the matrices.

Consider two random matrices of sizes 3x3 and 3x5 respectively

matrix_A = rand(3,3);
matrix_B = rand(3,5);
correlationMatrix = corr(matrix_A', matrix_B' );

3 个评论
显示 1更早的评论隐藏 1更早的评论

Sourabh Kondapaka 2020-8-10

Hi,

corr(matrix_A, matrix_B) function returns a matrix of the pairwise linear or rank correlation coefficient between each pair of columns in the input matrices matrix_A and matrix_B.

You can check for different types of correlation functions for the "corr()" function here.

Zuyu An 2020-8-19

thankyou very much, it is helpful!

请先登录，再进行评论。

Answer 2

Bruno Luong 2020-8-7

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/574501-matrix-compare-and-unkonw-relationships-to-find#answer_476593

编辑：Bruno Luong 2020-8-7

Use regression methods. If you have a linear/affine model, then use linear algebra. If you have "kind" non-linear, use polynomial, spline, fraction, nurbs regressions, if you have no clue on non-linearity but know the relationship is continuous/C1 relationship use learning technique, neuronal netwroks, deeplearning etc... If you have discontinuous non-linearity (hash code, encryption), you might be in big trouble or wait until a real quatum computer available...