From 10b474fba485e9a93157c7fa534bb66e7bcc6fde Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?=
 <zmoelnig@users.sourceforge.net>
Date: Mon, 21 Mar 2005 14:33:31 +0000
Subject: This commit was generated by cvs2svn to compensate for changes in
 r2637, which included commits to RCS files with non-trunk default branches.

svn path=/trunk/externals/iem/iemmatrix/; revision=2638
---
 src/mtx_mean.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 src/mtx_mean.c

(limited to 'src/mtx_mean.c')

diff --git a/src/mtx_mean.c b/src/mtx_mean.c
new file mode 100644
index 0000000..bb0d870
--- /dev/null
+++ b/src/mtx_mean.c
@@ -0,0 +1,61 @@
+/*
+ *  iemmatrix
+ *
+ *  objects for manipulating simple matrices
+ *  mostly refering to matlab/octave matrix functions
+ *
+ * (c) IOhannes m zmölnig, forum::für::umläute
+ * 
+ * IEM, Graz
+ *
+ * this code is published under the LGPL
+ *
+ */
+#include "iemmatrix.h"
+
+
+/* mtx_mean */
+static t_class *mtx_mean_class;
+
+static void mtx_mean_matrix(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
+{
+  int row=atom_getfloat(argv++);
+  int col=atom_getfloat(argv++);
+  t_atom *ip, *op;
+  int c=col, r;
+  t_float sum;
+  t_float factor=1./row;
+  adjustsize(x, 1, col);
+  op=x->atombuffer;
+
+  while(c--){
+    sum=0;
+    ip=argv+col-c-1;
+    r=row;
+    while(r--)sum+=atom_getfloat(ip+col*r);
+    SETFLOAT(op, sum*factor);
+    op++;
+  }
+  outlet_list(x->x_obj.ob_outlet, gensym("row"), col, x->atombuffer);
+}
+
+static void *mtx_mean_new(void)
+{
+  t_matrix *x = (t_matrix *)pd_new(mtx_mean_class);
+  outlet_new(&x->x_obj, 0);
+  x->col=x->row=0;
+  x->atombuffer=0;
+  return (x);
+}
+void mtx_mean_setup(void)
+{
+  mtx_mean_class = class_new(gensym("mtx_mean"), (t_newmethod)mtx_mean_new, 
+			     (t_method)matrix_free, sizeof(t_matrix), 0, 0, 0);
+  class_addmethod(mtx_mean_class, (t_method)mtx_mean_matrix, gensym("matrix"), A_GIMME, 0);
+  class_sethelpsymbol(mtx_mean_class, gensym("iemmatrix/mtx_mean"));
+}
+
+void iemtx_mean_setup(void)
+{
+  mtx_mean_setup();
+}
-- 
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