1 files changed, 55 insertions, 0 deletions
diff --git a/gsl-1.9/histogram/add.c b/gsl-1.9/histogram/add.c
new file mode 100644
index 0000000..1697d41
--- /dev/null
+++ b/gsl-1.9/histogram/add.c
@@ -0,0 +1,55 @@
+/* histogram/add.c
+ * 
+ * Copyright (C) 1996, 1997, 1998, 1999, 2000 Brian Gough
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <config.h>
+#include <gsl/gsl_errno.h>
+#include <gsl/gsl_histogram.h>
+
+#include "find.c"
+
+int
+gsl_histogram_increment (gsl_histogram * h, double x)
+{
+  int status = gsl_histogram_accumulate (h, x, 1.0);
+  return status;
+}
+
+int
+gsl_histogram_accumulate (gsl_histogram * h, double x, double weight)
+{
+  const size_t n = h->n;
+  size_t index = 0;
+
+  int status = find (h->n, h->range, x, &index);
+
+  if (status)
+    {
+      return GSL_EDOM;
+    }
+
+  if (index >= n)
+    {
+      GSL_ERROR ("index lies outside valid range of 0 .. n - 1",
+                 GSL_ESANITY);
+    }
+
+  h->bin[index] += weight;
+
+  return GSL_SUCCESS;
+}