Dear R users,
Version 3.0-0 of the sem package is now on CRAN. From the package NEWS file:
o Compiled code for optimization.
o Added multi-group models.
o Modification indices for equality-constrained parameters.
o weights argument added to tsls().
o raw argument added to cfa().
Of these changes, the first two are the most significant, and the first --
the use of compiled code to improve performance substantially -- was
implemented by Zhengua Nie, who has joined me and Jarrett Byrnes as a
co-developer of the package.
Best,
John
--------------------------------
John Fox
Senator William McMaster
Professor of Social Statistics
Department of Sociology
McMaster University
Hamilton, Ontario, Canada
http://socserv.mcmaster.ca/jfox
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