@jhkim7 wrote: It seems that there was confusion in the process of my explanation. Sorry about this.    I am in the process of converting the customer's research in Python into SAS. The lab uses Python, and the DFM(or DFA) model was analyzed in Python. * DFM (Dynamic Factor Model), DFA(Dynamic Factor Analysis)   Data consists of only X variables, and it is a process of finding the first principal component common factor by applying  (Ex) Data =>  yy-mm-dd  x1 x2 x3 ~ x30   I would like to ask you if there is a procedure or method to do DFM (or DFA) analysis in SAS if it consists of only X variables. (SSM or Factor Procedure? Option? )   Thank you for your interest and reply, jhkim Compare the text highlighted above in blue with this quote from your original statement: The data consists only of x and you should see where the confusion started. The first statement only mentions exactly one variable. I don't speak Python and with something like " x1 x2 x3 ~ x30" I would be pretty sure there are at least 4 variables and possibly 30 whose names start with X. ... View more