Help on R
Introduction
F?sun F. G?n?l is looking for some technical advice on using the R programming language for modeling heterogeneity
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I need to read a data set that has multiple observations per person (like scanner panel data). I want to use optim and compute the objective function person by person where each person has multiple observations (as in latent class models a la Kamakura and Russell (JMR, 1989))? I tried to use the (for) function but could not get it to do "Do loops" like in GAUSS or FORTRAN. Even if you have components of the program I am looking for, it could help. If so, would you send it to me at fusun.gonul@sru.edu? Thank you.
Dr. Füsun F. Gönül
fusun.gonul@sru.edu