X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fmath%2FChangeLog;h=00255341949012d00e3b6ec1653b50abdb1ef3ab;hb=aab828a13b340ac7f3302e3a009274ed49d43ef1;hp=2c0df305822838c8d3aa2c9aa0fcb76fa2a7f688;hpb=92c09e564002d356d20fc1e2e131027ef89f6748;p=pspp-builds.git

diff --git a/src/math/ChangeLog b/src/math/ChangeLog
index 2c0df305..00255341 100644
--- a/src/math/ChangeLog
+++ b/src/math/ChangeLog
@@ -1,3 +1,104 @@
+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
+	with case ordering.  This ensures that the casereader returned by
+	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):
+	Altered to match new code in covariance_pass_two();
+
+	* covariance-matrix.h: Fix declaration of covariance_pass_two.
+
+	* covariance-matrix.c (covariance_pass_two): Moved numeric and
+	categorical scopes of V2 inside for loop. If V1 is not
+	categorical, but V2 is, recurse with the order of the variables
+	reversed to use the code in the previous "if" scope.
+
+2008-07-16  Jason Stover  <jhs@math.gcsu.edu>
+
+	* covariance-matrix.c (covariance_pass_two): Renamed
+	covariance_pass_one. Fixed update of covariance matrix when both
+	variables are categorical.
+	(column_iterate): New function.
+
+2008-07-15  Jason Stover  <jhs@math.gcsu.edu>
+
+	* covariance-matrix.c (covariance_pass_one): New file, new function.
+
+2008-06-21  Jason Stover  <jhs@math.gcsu.edu>
+
+	* linreg.c (pspp_linreg): Accept a struct design_matrix.  Use new
+	accessor functions pspp_coeff_get_mean, pspp_coeff_get_sd.  New
+	functions pspp_linreg_get_indep_variable_mean,
+	pspp_linreg_set_indep_variable_mean,
+	pspp_linreg_get_indep_variable_sd,
+	pspp_linreg_set_indep_variable_sd. Altered pspp_linreg_get_coeff
+	to use accessor function pspp_coeff_var_to_coeff.
+
+	* coefficient.c: New functions pspp_coeff_get_mean,
+	pspp_coeff_set_mean, pspp_coeff_get_sd, pspp_coeff_set_sd,
+	pspp_coeff_var_to_coeff. Added doubles to hold mean and standard
+	deviation in struct varinfo.
+
+2008-06-14  Jason Stover  <jhs@math.gcsu.edu>
+
+	* linreg/: moved linreg.[ch] to src/math.
+
+2008-05-15  Ben Pfaff  <blp@gnu.org>
+
+	Patch #6512.
+
+	* moments.c (calc_moments): Use gsl_finite instead of finite, as a
+	stopgap measure for portability until appropriate gnulib modules
+	are available.
+
+2008-03-10  Jason Stover  <jhs@math.gcsu.edu>
+
+	* coefficient.c (pspp_linreg_get_coeff): Removed use of
+	coefficient 0 as intercept.
+
+2008-03-01  Jason Stover  <jhs@math.gcsu.edu>
+
+	* coefficient.c (pspp_coeff_init): Ensure first arg is not a null
+	pointer.
+
+	* coefficient.c (pspp_linreg_get_coeff): Make sure we don't return
+	a result beyond the last coefficient, or start with a coefficient
+	beyond the last one if there is only one.
+
 2007-06-06  Ben Pfaff  <blp@gnu.org>
 
 	Adapt case sources, sinks, and clients of procedure code to the