RICHARD M. HEIBERGER
2009-Nov-23 03:23 UTC
[R] change in behavior of contrasts for ordered factors
The row names are not constructed in 2.10.0pat. Is this change intentional? I am using Windows. R version 2.10.0 Patched (2009-11-09 r50375) Copyright (C) 2009 The R Foundation for Statistical Computing ISBN 3-900051-07-0> contrasts(ordered(LETTERS[1:4]))contrasts(ordered(LETTERS[1:4])) .L .Q .C [1,] -0.6708204 0.5 -0.2236068 [2,] -0.2236068 -0.5 0.6708204 [3,] 0.2236068 -0.5 -0.6708204 [4,] 0.6708204 0.5 0.2236068> q()q() R version 2.9.2 (2009-08-24) Copyright (C) 2009 The R Foundation for Statistical Computing ISBN 3-900051-07-0> contrasts(ordered(LETTERS[1:4]))contrasts(ordered(LETTERS[1:4])) .L .Q .C A -0.6708204 0.5 -0.2236068 B -0.2236068 -0.5 0.6708204 C 0.2236068 -0.5 -0.6708204 D 0.6708204 0.5 0.2236068>