After running the protocol with input SMILES file, with the component "learn R linear model", the result turned out to be as following:
"FitSummary
Data ~ ALogP + Num_H_Donors + FCFP_4.1. + FCFP_4.6. + FCFP_4.7. + ......"
I know the fingerprint parameter "FCFP_2 OR FCFP_4",BUT what does "FCFP_4.1" mean? Also, in the following result in the form of a equation, these parameters are endowed with coefficients.
Could someone in the forum help me to figure it out?
Thank you beforehead.

By the way, to testify my assumption, could you please explain the meaning of FCFP?