How can I link elements in corresponding rows of two matrices of the same dimension?

Hey everyone! I need a bit of help with something. I'm more like a beginner in learning Matlab and I have some trouble with creating a program.

I have 2 matrices of the same dimension:

A = blk.visDiff(:,1);

B = blk.responseMade(:,1);

And I want to count for each element of A the number of times the corresponding element in B is 1 (when I say corresponding element I mean that if I would have merged the two matrices in one matrix with 2 columns, the 2 "corresponding" elements will be in the same row of the final matrix), and then divide the number calculated by the total times of A being equal to each specific value.

For example:

calculate how many times A = 100 and B = 1 --> and then divide this number by the number of times A = 100

I always need to calculate this for B=1, but there are multiple values of A (11 values to be more exact). I want plot in the end the each values of A (e.g. 1, 80, 60..., -60, -80, -100) against the fraction of number of times when B was 1.

How can I write this in a program?

(The two matrices can also be merged in the program, this aspect is not important)

[madhan ravi]

isn‘t https://www.mathworks.com/matlabcentral/answers/438947-link-corresponding-elements-of-two-matrices-of-the-same-dimension the same?

Answer 1

[Star Strider]

See if the findgroups (link) and splitapply (link) functions will do what you want. (They were introduced in R2015b.)

[jasmine]

Thank you. I'll have a look

[Star Strider]

My pleasure.