X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fmath%2Flinreg.h;h=53f47a611c71dd92b808379bb905370fc01bbdde;hb=0bc7ad7a02ccb75b428dd4ce511986845c2a6c04;hp=05c8159630d8aa8da3467148a72e6d7a2da95218;hpb=4b79b7a1a1898a4e9b34d7be6a6ff1dd35e43938;p=pspp-builds.git

diff --git a/src/math/linreg.h b/src/math/linreg.h
index 05c81596..53f47a61 100644
--- a/src/math/linreg.h
+++ b/src/math/linreg.h
@@ -21,6 +21,7 @@
 #include <gsl/gsl_vector.h>
 #include <gsl/gsl_matrix.h>
 #include <src/math/coefficient.h>
+#include <math/covariance-matrix.h>
 
 enum
 {
@@ -96,9 +97,10 @@ struct pspp_linreg_cache_struct
 				   coefficient here. */
 
   /*
-    Pointer to the dependent variable.
+    Pointers to the variables.
    */
   const struct variable *depvar;
+  const struct variable **indep_vars;
 
   gsl_vector *residuals;
   struct pspp_coeff **coeff;
@@ -175,7 +177,8 @@ typedef struct pspp_linreg_cache_struct pspp_linreg_cache;
   to it. n is the number of cases, p is the number of
   independent variables.
  */
-pspp_linreg_cache *pspp_linreg_cache_alloc (size_t n, size_t p);
+pspp_linreg_cache *pspp_linreg_cache_alloc (const struct variable *, const struct variable **, 
+					    size_t, size_t);
 
 bool pspp_linreg_cache_free (void *);
 
@@ -214,4 +217,9 @@ void pspp_linreg_set_indep_variable_sd (pspp_linreg_cache *, const struct variab
  */
 double pspp_linreg_get_indep_variable_mean (pspp_linreg_cache *, const struct variable *);
 void pspp_linreg_set_indep_variable_mean (pspp_linreg_cache *, const struct variable *, double);
+
+/*
+  Regression using only the covariance matrix.
+ */
+void pspp_linreg_with_cov (const struct covariance_matrix *, pspp_linreg_cache *);
 #endif