This module contains the different examples that are shown in the README

It will only be included in unittest code, but is empty otherwise.

## Example

``````/// http://blackedder.github.io/ggplotd/images/function.png
import std.random : uniform;
import std.typecons : Tuple;
import ggplotd.stat : statFunction;
import ggplotd.ggplotd : GGPlotD;
import ggplotd.geom : geomLine, geomPoint;
import ggplotd.range : mergeRange;

auto f = (double x) { return x / (1 + x); };

auto aes = statFunction(f, 0.0, 10);
auto gg = GGPlotD().put(geomLine(aes));

// Generate some noisy points
auto f2 = (double x) { return x / (1 + x) * uniform(0.75, 1.25); };
auto aes2 = f2.statFunction(0.0, 10, 25);

// Show points in different colour
auto withColour = Tuple!(string, "colour")("aquamarine").mergeRange(aes2);
gg = gg.put(withColour.geomPoint);

gg.save("function.png");

``````

## Example

``````/// http://blackedder.github.io/ggplotd/images/hist2D.svg
import std.array : array;
import std.algorithm : map;
import std.range : iota, zip;
import std.random : uniform;

import ggplotd.aes : aes;
import ggplotd.colourspace : XYZ;
import ggplotd.geom : geomHist2D;
import ggplotd.ggplotd : GGPlotD, putIn;
import ggplotd.legend : continuousLegend;

auto xs = iota(0,500,1).map!((x) => uniform(0.0,5)+uniform(0.0,5))
.array;
auto ys = iota(0,500,1).map!((y) => uniform(0.0,5)+uniform(0.0,5))
.array;
auto gg = xs.zip(ys)
.map!((t) => aes!("x","y")(t[0], t[1]))
.geomHist2D.putIn(GGPlotD());
// Use a different colour scheme

gg.put(continuousLegend);

gg.save( "hist2D.svg" );

``````

## Example

``````/// http://blackedder.github.io/ggplotd/images/filled_density.svg
import std.array : array;
import std.algorithm : map;
import std.range : repeat, iota, chain, zip;
import std.random : uniform;

import ggplotd.aes : aes;
import ggplotd.geom : geomDensity;
import ggplotd.ggplotd : GGPlotD, putIn;
import ggplotd.legend : discreteLegend;
auto xs = iota(0,50,1).map!((x) => uniform(0.0,5)+uniform(0.0,5)).array;
auto cols = "a".repeat(25).chain("b".repeat(25));
auto gg = xs.zip(cols, 0.45.repeat(xs.length))
.map!((a) => aes!("x", "colour", "fill")(a[0], a[1], a[2]))
.geomDensity
.putIn(GGPlotD());
gg = discreteLegend.putIn(gg);
gg.save( "filled_density.svg" );

``````

## Example

``````/// http://blackedder.github.io/ggplotd/images/density2D.png
import std.algorithm : map;
import std.range : iota, zip;
import std.random : uniform, Random, unpredictableSeed;

import ggplotd.aes : aes;
import ggplotd.colourspace : XYZ;
import ggplotd.geom : geomDensity2D;
import ggplotd.ggplotd : GGPlotD, putIn;
import ggplotd.legend : continuousLegend;

// For debugging reasons, print out the current seed
import std.stdio : writeln;
auto seed = unpredictableSeed;
auto rnd = Random(seed);
//auto rnd = Random(1193462362); // This is a seed that currently fails. Use it for debugging
writeln("Random seed MCMC: ", seed);

auto xs = iota(0,500,1).map!((x) => uniform(0.0,5, rnd)+uniform(0.0,5, rnd));
auto ys = iota(0,500,1).map!((y) => uniform(0.5,1.5, rnd)+uniform(0.5,1.5, rnd));
auto gg = zip(xs, ys)
.map!((a) => aes!("x","y")(a[0], a[1]))
.geomDensity2D
.putIn( GGPlotD() );
// Use a different colour scheme
gg.put(continuousLegend);

gg.save( "density2D.png" );

``````

## Example

``````/// http://blackedder.github.io/ggplotd/images/labels.png
import std.algorithm : map;
import std.range : zip;
import std.math : PI;

import ggplotd.aes : aes;
import ggplotd.geom : geomPoint, geomLabel;
import ggplotd.ggplotd : GGPlotD;
import ggplotd.axes : xaxisRange, yaxisRange;
auto dt = zip( [0.0,1,2,3,4], [4.0,3,2,1,0],
["center", "left", "right", "bottom", "top"],
[0.0, 0.0, 0.0, 0.0, 0.0],
["center", "left", "right", "bottom", "top"])
.map!((a) => aes!("x", "y", "label", "angle", "justify")
(a[0], a[1], a[2], a[3], a[4]));

auto gg = GGPlotD()
.put(geomPoint( dt ))
.put(geomLabel(dt))
.put(xaxisRange(-2,11))
.put(yaxisRange(-2,11));

auto dt2 = zip( [1.0,2,3,4,5], [5.0,4,3,2,1],
["center", "left", "right", "bottom", "top"],
[0.5*PI, 0.5*PI, 0.5*PI, 0.5*PI, 0.5*PI],
["center", "left", "right", "bottom", "top"])
.map!((a) => aes!("x", "y", "label", "angle", "justify")
(a[0], a[1], a[2], a[3], a[4]));
gg.put( geomLabel(dt2) ).put(geomPoint(dt2));

auto dt3 = zip( [1.0,2,4,6,7], [8.0,7,5,3,2],
["center", "left", "right", "bottom", "top"],
[0.25*PI, 0.25*PI, 0.25*PI, 0.25*PI, 0.25*PI],
["center", "left", "right", "bottom", "top"])
.map!((a) => aes!("x", "y", "label", "angle", "justify")
(a[0], a[1], a[2], a[3], a[4]));
gg.put( geomLabel(dt3) ).put(geomPoint(dt3));

gg.save( "labels.png" );

``````