Update all #include directives to the currently preferred style.

[pspp-builds.git] / src / math / ts / innovations.c

diff --git a/src/math/ts/innovations.c b/src/math/ts/innovations.c
index 553e20e8f7953a879595c3ddb0dce2e0e715b1dc..ba2120fb4e6bc735f41d300b5aef406be5c2828d 100644 (file)
--- a/src/math/ts/innovations.c
+++ b/src/math/ts/innovations.c
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 2006 Free Software Foundation, Inc.
+   Copyright (C) 2006, 2011 Free Software Foundation, Inc.
 
    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
@@ -26,14 +26,19 @@
  */
 
 #include <config.h>
+
+#include "math/ts/innovations.h"
+
 #include <gsl/gsl_matrix.h>
 #include <gsl/gsl_vector.h>
+#include <math.h>
 #include <stdlib.h>
-#include <libpspp/compiler.h>
-#include <math/coefficient.h>
-#include <math/ts/innovations.h>
 
-#include "xalloc.h"
+#include "libpspp/compiler.h"
+#include "libpspp/misc.h"
+#include "math/coefficient.h"
+
+#include "gl/xalloc.h"
 
 static void
 get_mean (const gsl_matrix *data,
@@ -160,7 +165,7 @@ innovations_update_scale (struct innovations_estimate *est, double *theta,
       for (j = 0; j < i; j++)
        {
          k = i - j - 1;
-         result -= theta[k] * theta[k] * est->scale[j];
+         result -= pow2 (theta[k]) * est->scale[j];
        }
       est->scale[i] = result;
     }