Diff: normstat.h

Revision:

0:63c55a3cd73c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/normstat.h	Mon Feb 25 19:41:26 2013 +0000
@@ -0,0 +1,33 @@
+
+
+#ifndef __NORMSTAT_H
+#define __NORMSTAT_H
+#include "mbed.h"
+#include <cstdlib>   // for rand
+#include <cmath>     // for atan, sqrt, log, cos
+#include <algorithm> // for generate_n
+ 
+double const pi = 4*std::atan(1.0);
+ //double const pi = 3.141592653589793;
+ 
+ 
+// simple function for normal distribution
+double normpdf(double x, double m, double s);  //returns f(x|m,s)
+    
+
+//Generates a normally distributed random number
+//taken from http://rosettacode.org/wiki/Random_numbers#C.2B.2B
+//on 21/02/2013
+//by Brian Claus
+class normrand
+{
+public:
+  normrand(double m, double s);
+  
+  double draw(); // returns a single normally distributed number
+  double draw(double m, double s); // returns a single normally distributed number
+
+private:
+  double mu, sigma;
+};
+#endif
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