MATLAB: Is there a function in MATLAB to split the dataset into 70% for training and 30% for validation

Question

I have date payment records data set which I want to split for training and validation.

The modeling is to be done in excel, it is only the split that I am trying to do in MATLAB such that both sets have evenly distributed data of the entire period.

Is there a direct function that can split the data into 70% for training and 30% for validation ?

Answer 1

https://in.mathworks.com/matlabcentral/answers/395136-how-to-divide-a-data-set-randomly-into-training-and-testing-data-set

https://in.mathworks.com/matlabcentral/answers/388385-how-can-i-do-a-80-20-split-on-datasets-to-obtain-training-and-test-datasets