Estimate parameters. Moved some code to re-usable functions.

[pspp-builds.git] / src / math / ChangeLog

diff --git a/src/math/ChangeLog b/src/math/ChangeLog
index b3c9386d43d22dfc8f680641ee744b9cd02bb5c1..00255341949012d00e3b6ec1653b50abdb1ef3ab 100644 (file)
--- a/src/math/ChangeLog
+++ b/src/math/ChangeLog
@@ -1,3 +1,19 @@
+2008-08-17  Jason H Stover  <jhs@math.gcsu.edu>
+
+       * linreg.c (post_sweep_computations): New function to re-use the
+       re-usable. New function cache_init() to re-use the re-usable. 
+       pspp_linreg_with_cov() now estimates parameters via reg_sweep().
+
+2008-08-16  Jason H Stover  <jhs@math.gcsu.edu>
+
+       * linreg.c (pspp_linreg_with_cov): New function to estimate
+       parameters directly from covariance matrix instead of using the
+       entire data set.
+
+       * linreg.c (rearrange_covariance_matrix): New function to ensure
+       the columns of the covariance matrix correspond to the variables
+       in the model.
+
 2008-07-24   John Darrington <john@darrington.wattle.id.au>
 
        * merge.c merge.h sort.c sort.h: Removed the value_cnt associated
@@ -5,6 +21,20 @@
        sort_execute now has the same dimensions as the casereader passed 
        in.
 
+2008-07-24  Jason H Stover  <jhs@math.gcsu.edu>
+
+       * covariance-matrix.c (covariance_pass_two): Dropped weight
+       argument. Corrected update of the entries of the covariance
+       matrix. 
+
+       * covariance-matrix.c (column_iterate): Dropped weight
+       argument. Corrected update of the entries of the covariance
+       matrix. 
+
+       * covariance-matrix.c (covariance_update_categorical_numeric):
+       Dropped weight argument. Corrected update of the entries of the
+       covariance matrix.
+
 2008-07-17  Jason H Stover  <jhs@math.gcsu.edu>
 
        * covariance-matrix.c (covariance_update_categorical_numeric):