first commit

data/data.go

@@ -0,0 +1,61 @@
+package data
+
+import (
+	"bufio"
+	"math"
+	"os"
+	"strconv"
+)
+
+type Zeros map[float64]float64
+
+func check(e error) {
+	if e != nil {
+		panic(e)
+	}
+}
+
+func ImportZeros(filename string) Zeros {
+	f, err := os.Open(filename)
+	check(err)
+
+	z := make(Zeros)
+	scanner := bufio.NewScanner(f)
+	for scanner.Scan() {
+		text := scanner.Text()
+		number, parseErr := strconv.ParseFloat(text, 64)
+		z[number] = number - math.Floor(number)
+		check(parseErr)
+	}
+	check(scanner.Err())
+	return z
+}
+
+func ExportData(data) {
+}
+
+func floatsEqual(a float64, b float64) bool {
+	Epsilon := 0.000001
+	if math.Abs(a-b) < Epsilon {
+		return true
+	}
+	return false
+}
+
+// fractional differences
+func closestZero(z Zeros, zero float64) float64 {
+}
+
+func fractionalDifferences(z Zeros) (float64, float64) {
+}
+
+// zeros epsilon close to other
+func fCloseTo(z Zeros, zero float64, epsilon float64) int {
+}
+
+func zerosFCloseTo(z Zeros, epsilon float64) float64 {
+}
+
+// histogram creating
+func createHistogram(z Zeros, epsilon float64) map[int]float64 {
+}

data/data_test.go

@@ -0,0 +1,48 @@
+package data
+
+import (
+	"testing"
+)
+
+func TestFloatsEqual(t *testing.T) {
+	const inA, inB, out = 1.2, 1.2, true
+	if x := floatsEqual(inA, inB); x != out {
+		t.Errorf("floatsEqual(%v, %v) = %v, want %v", inA, inB, x, out)
+	}
+
+	const inA2, inB2, out2 = 1.2, 1.3, false
+	if x := floatsEqual(inA2, inB2); x != out2 {
+		t.Errorf("floatsEqual(%v, %v) = %v, want %v", inA2, inB2, x, out2)
+	}
+}
+
+func TestImportZeros(t *testing.T) {
+	const in string = "test.dat"
+	out := Zeros{3.14: 0.14, 2.71: 0.71}
+	x := ImportZeros(in)
+	for k, v := range x {
+		if !floatsEqual(out[k], v) {
+			t.Errorf("ImportZeros(%v) = %v, want %v", in, x, out)
+		}
+	}
+}
+
+func TestClosestZero(t *testing.T) {
+
+}
+
+func TestFractionalDifferences(t *testing.T) {
+
+}
+
+func TestFCloseTo(t *testing.T) {
+
+}
+
+func TestZerosFCloseTo(t *testing.T) {
+
+}
+
+func TestCreateHistogram(t *testing.T) {
+
+}

data/test.dat

@@ -0,0 +1,2 @@
+3.14
+2.71

main.go

@@ -0,0 +1,6 @@
+package main
+
+func main() {
+	z := data.ImportZeros("zeros6")
+
+}