Add min and max

2 files changed, 12 insertions, 1 deletions

diff --git a/print.go b/print.go
index 2a39c71..8bdeea3 100644
--- a/print.go
+++ b/print.go
@@ -7,12 +7,14 @@ import (
 // Prints each calculated statistic on a line with one tab preceding it
 func (s *Stats) PrettyStats() string {
 	return fmt.Sprintf(`
+	Min: %.2f
+	Max: %.2f
 	Mean: %.2f
 	Variance: %.2f
 	Standard Deviation: %.2f
 	Skewness: %.2f
 	Kurtosis: %.2f
-`, s.Mean(), s.Variance(), s.StandardDeviation(), s.Skewness(), s.Kurtosis())
+`, s.Min, s.Max, s.Mean(), s.Variance(), s.StandardDeviation(), s.Skewness(), s.Kurtosis())
 }
 
 // Returns a string containing all of the data within the struct
diff --git a/stats.go b/stats.go
index ffe94eb..46ddc99 100644
--- a/stats.go
+++ b/stats.go
@@ -40,6 +40,8 @@ import (
 // several methods are exposed in order to make your life easy
 type Stats struct {
 	n, m1, m2, m3, m4 float64
+	Max               float64
+	Min               float64
 }
 
 // Zeros out the  struct for re-use
@@ -53,6 +55,13 @@ func (s *Stats) Clear() {
 func (s *Stats) Push(x float64) {
 	var delta, delta_n, delta_n2, term1, n1 float64
 
+	if x >= s.Max {
+		s.Max = x
+	}
+	if x <= s.Min {
+		s.Min = x
+	}
+
 	n1 = s.n
 	s.n++
 	delta = x - s.m1