This input file is a user created file that is a restricted list (hence the "R" in LMRKLISTR.TXT as compared to LMRKLIST.TXT.) Typically SPC uses all landmarks that have been created, but at times you may want to reduce the number of landmarks that are used, which is why you would create a restricted list of landmarks. This must be used with caution, because most programs will check for the LMRKLISTR.TXT and use it if it exists.
If you don't remove the LMRKLISTR.TXT file once you're done with it, you'll be working with a partial dataset.
This file is used by various programs, if it exists. One program that uses LMRKLISTR.TXT is regres.
(Compiled by JRW)