New statistics related models and handlers.

models/machine.go

@@ -0,0 +1,9 @@
+package models
+
+type MachineUsage struct {
+	Machine    string
+	DrawsUsed  int
+	PctOfDraws float64
+	FirstUsed  string
+	LastUsed   string
+}

models/prediction.go

@@ -0,0 +1,15 @@
+package models
+
+import (
+	"database/sql"
+)
+
+type NextMachineBallsetPrediction struct {
+	NextDrawDate         string
+	CurrentMachine       string
+	EstimatedNextMachine string
+	MachineTransitionPct float64
+	CurrentBallset       sql.NullString
+	EstimatedNextBallset sql.NullString
+	BallsetTransitionPct sql.NullFloat64
+}

models/statistics.go

@@ -0,0 +1,18 @@
+package models
+
+type TopNum struct {
+	Number    int
+	Frequency int
+}
+
+type Pair struct {
+	A         int
+	B         int
+	Frequency int
+}
+
+type ZScore struct {
+	Ball   int
+	Recent int
+	Z      float64
+}