We would need to see the contents of the "mplus" file that is read in. Quite
possibly it's overwriting either "iter" or "count" with an incompatible data
type.
I would also recommend contactingWalter Leite directly to verify you have a
proper mplus source file.
/* partial quote follows */
The error message I keep receiving is:
Read 107 items
Error in count <= iter :
comparison (4) is possible only for atomic and list types
The code I use comes from Walter Leite's webpage:
http://education.ufl.edu/leite/code/
The syntax I use is the following:
#Last updated: 11/27/07
#Function (in R language) that performs item selection for the development
of
#short-forms of scales using an Ant Colony Optmization (ACO) Algorithm.
#Author: Walter Leite, Assitant Professor, Department of Educational
Psychology
#University of Florida
#Contact Information: walter.leite at coe.ufl.edu
#The paper "Item selection for the development of short-forms of scales
using
#an Ant Colony Optimization algorithm" can be obtained by e-mailing the
author.
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