1 2008-07-16 Jason Stover <jhs@math.gcsu.edu>
3 * covariance-matrix.c (covariance_pass_two): Renamed
4 covariance_pass_one. Fixed update of covariance matrix when both
5 variables are categorical.
6 (column_iterate): New function.
8 2008-07-15 Jason Stover <jhs@math.gcsu.edu>
10 * covariance-matrix.c (covariance_pass_one): New file, new function.
12 2008-06-21 Jason Stover <jhs@math.gcsu.edu>
14 * linreg.c (pspp_linreg): Accept a struct design_matrix. Use new
15 accessor functions pspp_coeff_get_mean, pspp_coeff_get_sd. New
16 functions pspp_linreg_get_indep_variable_mean,
17 pspp_linreg_set_indep_variable_mean,
18 pspp_linreg_get_indep_variable_sd,
19 pspp_linreg_set_indep_variable_sd. Altered pspp_linreg_get_coeff
20 to use accessor function pspp_coeff_var_to_coeff.
22 * coefficient.c: New functions pspp_coeff_get_mean,
23 pspp_coeff_set_mean, pspp_coeff_get_sd, pspp_coeff_set_sd,
24 pspp_coeff_var_to_coeff. Added doubles to hold mean and standard
25 deviation in struct varinfo.
27 2008-06-14 Jason Stover <jhs@math.gcsu.edu>
29 * linreg/: moved linreg.[ch] to src/math.
31 2008-05-15 Ben Pfaff <blp@gnu.org>
35 * moments.c (calc_moments): Use gsl_finite instead of finite, as a
36 stopgap measure for portability until appropriate gnulib modules
39 2008-03-10 Jason Stover <jhs@math.gcsu.edu>
41 * coefficient.c (pspp_linreg_get_coeff): Removed use of
42 coefficient 0 as intercept.
44 2008-03-01 Jason Stover <jhs@math.gcsu.edu>
46 * coefficient.c (pspp_coeff_init): Ensure first arg is not a null
49 * coefficient.c (pspp_linreg_get_coeff): Make sure we don't return
50 a result beyond the last coefficient, or start with a coefficient
51 beyond the last one if there is only one.
53 2007-06-06 Ben Pfaff <blp@gnu.org>
55 Adapt case sources, sinks, and clients of procedure code to the
58 * automake.mk: Add new files.
60 * levene.c: Adapt to new casereaders. Abstract better.
66 * sort.c: Rewrite in terms of case_ordering, merger.
68 2007-05-31 Jason Stover <jhs@math.gcsu.edu>
70 * interaction.c: New file.
71 * interaction.h : New file.
73 Mon Feb 5 15:42:14 2007 Ben Pfaff <blp@gnu.org>
75 * moments.c (moments_pass_two): Reduce number of multiplications.
77 Thu Dec 7 15:27:49 WST 2006 John Darrington <john@darrington.wattle.id.au>
79 * factor-stats.c factor-stats.h: Changed independent values to
80 be pointers rather than copies.
82 Wed Dec 6 21:14:59 2006 Ben Pfaff <blp@gnu.org>
84 * coefficient.c: (pspp_coeff_get_value) Compare variable pointers
85 instead of variable indexes.
86 (pspp_linreg_get_coeff) Ditto.
87 (design_matrix_col_to_var_index) Removed.
88 (design_matrix_col_to_var) Compare variable pointers
89 instead of variable indexes.
90 (cmp_dm_var_index) Ditto.
91 (design_matrix_var_to_column) Ditto.
92 (dm_var_to_last_column) Ditto.
94 Sun Nov 5 08:30:32 WST 2006 John Darrington <john@darrington.wattle.id.au>
96 * levene.c levene.h Changed to use the new casefilter structure.
98 2006-07-15 Jason Stover <jhs@math.gcsu.edu>
100 * coefficient.c (pspp_coeff_init): Make design_matrix arg const.
102 2006-07-14 Jason Stover <jhs@math.gcsu.edu>
104 * coefficient.c (pspp_coeff_init): Removed use of
105 pspp_linreg_cache to make the routines more generally useful.
107 2006-05-19 Jason Stover <jhs@math.gcsu.edu>
109 * coefficient.h: Renamed pspp_linreg_coeff to pspp_coeff.
111 * coefficient.c: Moved to src/math.
113 * coefficient.h: Moved to src/math.
115 Tue May 9 21:09:37 2006 Ben Pfaff <blp@gnu.org>
117 * sort.c (sort_active_file_to_casefile): Check return value of
118 multipass_procedure().
120 Wed May 3 23:06:43 2006 Ben Pfaff <blp@gnu.org>
122 Continue reforming procedure execution. In this phase, get rid of
123 many global variables, consolidating procedure execution in
124 procedure.c. Encapsulate transformations in new "struct
125 trns_chain". Also, change implementation of N OF CASES, FILTER,
126 and PROCESS IF from special cases to transformations.
128 * sort.c: (prepare_to_sort_active_file) Don't run a procedure
130 (sort_active_file_in_place) Rewrite to run a procedure, capture
131 the output, sort the output, and set that as the source for the
133 (struct sort_to_casefile_cb_data) New structure.
134 (sort_to_casefile_callback) New function.
135 (sort_active_file_to_casefile) Rewrite to use
136 multipass_procedure().
138 Sat Apr 29 11:09:33 WST 2006 John Darrington <john@darrington.wattle.id.au>
140 * removed unused variable.
142 Sat Apr 15 18:01:22 2006 Ben Pfaff <blp@gnu.org>
144 * factor-stats.c (metrics_postcalc): Add casts to fix warnings.
146 Thu Mar 2 08:40:33 WST 2006 John Darrington <john@darrington.wattle.id.au>
148 * Moved files from src directory