Hi there, im currently working on a research project that requires making usage of multiple regression.
I am really struggling to find any proofs or methods of derivation for the coefficients used in the linear regression line. I know for normal simple regression we use least means squared which then allows for two simple forumulas to find say B0 and B1. But in the multiple case, where we may have B0, B1, B2,....
how do you find these?
Many online sources just seem to describe it as ugly, and skip this part out. or resort to a computing programme.