+2008-03-08 Jason Stover <jhs@wonko.gcsu.edu>
+
+ * linreg.c (pspp_linreg_get_vars): Clean up the loop that searches
+ for coefficient/variable matches. Fix for bug 22419.
+
+2008-02-28 Jason Stover <jhs@math.gcsu.edu>
+
+ * linreg.c (has_coefficient): New function.
+
+ * linreg.c (pspp_linreg_predict): Fix bug 22419.
+
+2007-09-21 Jason Stover <jhs@math.gcsu.edu>
+
+ * linreg.c (pspp_linreg_cache_free): Partial fix of memory leak,
+ bug 21056.
+
+2007-08-11 Jason Stover <jhs@math.gcsu.edu>
+
+ * linreg.h (enum): Dropped ambiguous PSPP_LINREG_SVD in favor of
+ PSPP_LINREG_QR. Added PSPP_LINREG_CONDITIONAL_INVERSE.
+
+ * linreg.c (pspp_linreg): Added scope and comment for use of
+ generalized inverse to solve normal equations.
+
+2007-04-12 Jason Stover <jhs@math.gcsu.edu>
+
+ * linreg.c: (pspp_linreg_cache_free) Check for null pointer before
+ freeing.
+
+Wed Dec 6 21:16:22 2006 Ben Pfaff <blp@gnu.org>
+
+ * linreg.c: (pspp_linreg_get_vars) Compare variable pointers
+ instead of variable indexes.
+
+2006-05-19 Jason Stover <jhs@math.gcsu.edu>
+
+ * coefficient.c: Moved to src/math.
+
+ * coefficient.h: Moved to src/math.
+
+2006-05-11 Jason Stover <jhs@math.gcsu.edu>
+
+ * linreg.h: Made linreg_cache's coeff a pspp_linreg_coeff**.
+
+2006-04-28 Jason Stover <jhs@math.gcsu.edu>
+
+ * linreg.c (pspp_linreg_get_vars): New function. Fills an array with
+ pointers to the variables used in the model.
+
+ * linreg.h: Add a pointer called get_vars to pspp_linreg_get_vars()
+ to access variables in a model.
+
+ * coefficient.c (pspp_linreg_coeff_init): Set the variable
+ associated with the intercept term to NULL.
+
+2006-04-26 Jason Stover <jhs@math.gcsu.edu>
+
+ * linreg.h: Added a pointer to predicted values.
+
+ * linreg.c (pspp_linreg_cache_alloc): Initialized pointer to
+ predicted values.
+
+2006-04-22 Jason Stover <jhs@debs.hjklfdsss.org>
+
+ * predict.c (pspp_linreg_residual): Removed unnecessary cast of c_
+ to pspp_linreg_cache.
+
+2006-04-18 Jason Stover <jhs@math.gcsu.edu>
+
+ * linreg.h: Added a pointer to a variable to store the resduals.
+
+ * linreg.c (pspp_linreg_cache_alloc): Initialize the residual
+ variable pointer to NULL.
+
+2006-04-17 Jason Stover <jason@wonko.gcsu.edu>
+
+ * linreg.c (pspp_linreg_cache_free): Accept a pointer of type
+ void to match definition of trns_proc_func.
+
+2006-04-17 Jason Stover <jhs@math.gcsu.edu>
+
+ * linreg.c (pspp_linreg_cache_free): Return a bool.
+
+Sat Apr 15 18:03:01 2006 Ben Pfaff <blp@gnu.org>
+
+ * predict.c (pspp_linreg_predict): Change prototype to match
+ struct pspp_linreg_cache_struct's predict member.
+ * predict.c (pspp_linreg_residual): Change prototype to match
+ struct pspp_linreg_cache_struct's residual member.
+
+Sat Apr 15 18:01:39 2006 Ben Pfaff <blp@gnu.org>
+
+ * coefficient.c (pspp_linreg_get_coeff): Compare n_indeps against
+ 0, instead of NULL, because it's an integer type.
+
+Mon Apr 3 13:20:54 2006 Ben Pfaff <blp@gnu.org>
+
+ * linreg.c (pspp_linreg): Move declaration before code for C90
+ compliance.
+
+2006-04-09 Jason Stover <jhs@math.gcsu.edu>
+
+ * predict.c (pspp_linreg_predict): Do something sensible even with
+ bad input.
+
+2006-04-07 Jason Stover <jhs@math.gcsu.edu>
+
+ * predict.c (pspp_linreg_predict): Improved handling of null
+ pointer args.
+
+ * predict.c (pspp_linreg_residuals): New function.
+
+ * coefficient.c: Improved handling of null pointer args.
+
+2006-04-05 Jason Stover <jhs@math.gcsu.edu>
+
+ * predict.c: New file. pspp_linreg_predict() uses a linear model
+ to return a predicted value of the dependent variable.
+
+ * coefficient.c: Added pspp_linreg_coeff_get_est() and
+ pspp_linreg_coeff_get_std_err() to access estimated values of
+ coefficients and standard errors.
+
2006-04-03 Jason Stover <jhs@math.gcsu.edu>
* coefficient.c: Added pspp_linreg_get_coeff() to find a
- coefficient corresponding to a variabl/value combination.
+ coefficient corresponding to a variable/value combination.
Thu Mar 2 08:40:33 WST 2006 John Darrington <john@darrington.wattle.id.au>
projects / pspp-builds.git / blobdiff