[Minor] Make bayes normalization function public

1 files changed, 1 insertions, 21 deletions

diff --git a/src/libstat/classifiers/bayes.c b/src/libstat/classifiers/bayes.c
index 35e061e08..07fe6cc86 100644
--- a/src/libstat/classifiers/bayes.c
+++ b/src/libstat/classifiers/bayes.c
@@ -165,27 +165,7 @@ bayes_classify_token (struct rspamd_classifier *ctx,
 	}
 }
 
-/*
- * A(x - 0.5)^4 + B(x - 0.5)^3 + C(x - 0.5)^2 + D(x - 0.5)
- * A = 32,
- * B = -6
- * C = -7
- * D = 3
- * y = 32(x - 0.5)^4 - 6(x - 0.5)^3 - 7(x - 0.5)^2 + 3(x - 0.5)
- */
-static gdouble
-bayes_normalize_prob (gdouble x)
-{
-	const gdouble a = 32, b = -6, c = -7, d = 3;
-	gdouble xx, x2, x3, x4;
-
-	xx = x - 0.5;
-	x2 = xx * xx;
-	x3 = x2 * xx;
-	x4 = x3 * xx;
 
-	return a*x4 + b*x3 + c*x2 + d*xx;
-}
 
 gboolean
 bayes_init (rspamd_mempool_t *pool, struct rspamd_classifier *cl)
@@ -308,7 +288,7 @@ bayes_classify (struct rspamd_classifier * ctx,
 		 * we need to rescale it to display correctly
 		 */
 		rspamd_snprintf (sumbuf, 32, "%.2f%%", (final_prob - 0.5) * 200.);
-		final_prob = bayes_normalize_prob (final_prob);
+		final_prob = rspamd_normalize_probability (final_prob, 0.5);
 		g_assert (st != NULL);
 		cur = g_list_prepend (NULL, sumbuf);
 		rspamd_task_insert_result (task,