[R-pkgs] version 3.0-0 of the sem now on CRAN

From: John Fox <jfox_at_mcmaster.ca>
Date: Sun, 15 Apr 2012 10:50:49 -0400

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.


John Fox
Senator William McMaster
  Professor of Social Statistics
Department of Sociology
McMaster University
Hamilton, Ontario, Canada

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