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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| VERSION = 1.1.7 | ||
| VERSION = 1.1.8 | ||
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| APP := jp | ||
| PACKAGES := $(shell go list -f {{.Dir}} ./...) | ||
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||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| package main | ||
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| import ( | ||
| "log" | ||
| "reflect" | ||
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| "github.com/sgreben/jp/pkg/data" | ||
| "github.com/sgreben/jp/pkg/draw" | ||
| "github.com/sgreben/jp/pkg/plot" | ||
| ) | ||
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| func heatmapData(xv []reflect.Value, yv []reflect.Value, nbins uint) (heatmap *data.Heatmap) { | ||
| var x, y []float64 | ||
| for i := range xv { | ||
| if xv[i].IsValid() && xv[i].CanInterface() { | ||
| xvi, ok := xv[i].Interface().(float64) | ||
| if ok { | ||
| x = append(x, xvi) | ||
| } | ||
| } | ||
| } | ||
| for i := range yv { | ||
| if yv[i].IsValid() && yv[i].CanInterface() { | ||
| yvi, ok := yv[i].Interface().(float64) | ||
| if ok { | ||
| y = append(y, yvi) | ||
| } | ||
| } | ||
| } | ||
| if len(x) != len(y) { | ||
| log.Fatal(len(x), " = len(x) != len(y) = ", len(y)) | ||
| } | ||
| points := make([][2]float64, len(x)) | ||
| for i := 0; i < len(x); i++ { | ||
| points[i] = [2]float64{x[i], y[i]} | ||
| } | ||
| if len(x) == 0 { | ||
| log.Fatal("no valid x values given") | ||
| } | ||
| bins := data.NewBins2D(points) | ||
| bins.X.Number = int(nbins) | ||
| bins.Y.Number = int(nbins) | ||
| if nbins == 0 { | ||
| bins.X.Number = data.BinsSturges(len(points)) | ||
| bins.Y.Number = data.BinsSturges(len(points)) | ||
| } | ||
| heatmap = data.NewHeatmap(data.Histogram2D(points, bins)) | ||
| return | ||
| } | ||
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| func heatmap(xv, yv []reflect.Value, c draw.Canvas, nbins uint) string { | ||
| heatmap := heatmapData(xv, yv, nbins) | ||
| chart := plot.NewHeatMap(c.GetBuffer()) | ||
| return chart.Draw(heatmap) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| package data | ||
|
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| import "math" | ||
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| type Heatmap struct { | ||
| X, Y []Bin | ||
| Z [][]float64 | ||
| MinX, MaxX uint64 | ||
| MinY, MaxY uint64 | ||
| MinZ, MaxZ uint64 | ||
| } | ||
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| func NewHeatmap(x, y []Bin, z [][]uint64) *Heatmap { | ||
| h := new(Heatmap) | ||
| h.X, h.Y = x, y | ||
| h.Z = make([][]float64, len(z)) | ||
| h.MinX, h.MinY, h.MinZ = math.MaxUint64, math.MaxUint64, math.MaxUint64 | ||
| h.MaxX, h.MaxY, h.MaxZ = 0, 0, 0 | ||
| for _, b := range x { | ||
| if b.Count > h.MaxX { | ||
| h.MaxX = b.Count | ||
| } | ||
| if b.Count < h.MinX { | ||
| h.MinX = b.Count | ||
| } | ||
| } | ||
| for _, b := range x { | ||
| b.CountNorm = float64(b.Count-h.MinX) / float64(h.MaxX-h.MinX) | ||
| } | ||
| for _, b := range y { | ||
| if b.Count > h.MaxY { | ||
| h.MaxY = b.Count | ||
| } | ||
| if b.Count < h.MinY { | ||
| h.MinY = b.Count | ||
| } | ||
| } | ||
| for _, b := range y { | ||
| b.CountNorm = float64(b.Count-h.MinY) / float64(h.MaxY-h.MinY) | ||
| } | ||
| for i := range z { | ||
| h.Z[i] = make([]float64, len(z[i])) | ||
| for _, b := range z[i] { | ||
| if b > h.MaxZ { | ||
| h.MaxZ = b | ||
| } | ||
| if b < h.MinZ { | ||
| h.MinZ = b | ||
| } | ||
| } | ||
| } | ||
| for i := range z { | ||
| for j := range z[i] { | ||
| h.Z[i][j] = float64(z[i][j]-h.MinZ) / float64(h.MaxZ-h.MinZ) | ||
| } | ||
| } | ||
| if h.MaxX == 0 { | ||
| h.MaxX = 1 | ||
| } | ||
| if h.MaxY == 0 { | ||
| h.MaxY = 1 | ||
| } | ||
| if h.MaxZ == 0 { | ||
| h.MaxZ = 1 | ||
| } | ||
|
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| return h | ||
| } |
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