- #1
Adel Makram
- 635
- 15
My initial objective is to make a regression of ##y## dependent variable on a given set of ##x_1##, ##x_2##... and ##x_m## independent variables. Suppose, I am dealing with a data set of ##n## samples, I found that the variables are correlated so I decided to do factor analysis to best represent the variables in fewer uncorrelated factors ##v## with number ##k<m##.
I just would like to know how to regress ##y## on ##v_1##, ##v_2## ... ##v_k## for each data sample so as to take the form ##y=b_0+b_1 v_1+...+b_k v_k##
I know the factor loading matrix represents the variable ##x## as a linear combination of factors ##v## in the form of ##x=Fv## where ##F## is the factor loading matrix but how this may help in my case. I assume I need the opposite, which to represent ##v## in terms of given ##x##. I thought to extract ##v## in term of ##x## by inverse transformation but ##F## is not square matrix so it can not be inverted.
I just would like to know how to regress ##y## on ##v_1##, ##v_2## ... ##v_k## for each data sample so as to take the form ##y=b_0+b_1 v_1+...+b_k v_k##
I know the factor loading matrix represents the variable ##x## as a linear combination of factors ##v## in the form of ##x=Fv## where ##F## is the factor loading matrix but how this may help in my case. I assume I need the opposite, which to represent ##v## in terms of given ##x##. I thought to extract ##v## in term of ##x## by inverse transformation but ##F## is not square matrix so it can not be inverted.
Last edited: