unionSeries

import mir.date: Date;

//////////////////////////////////////
// Constructs two time-series.
//////////////////////////////////////
auto index0 = [1,3,4];
auto data0 = [1.0, 3, 4];
auto series0 = index0.series(data0);

auto index1 = [1,2,5];
auto data1 = [10.0, 20, 50];
auto series1 = index1.series(data1);

//////////////////////////////////////
// Merges multiple series into one.
//////////////////////////////////////
// Order is matter.
// The first slice has higher priority.
auto m0 = unionSeries(series0, series1);
auto m1 = unionSeries(series1, series0);

assert(m0.index == m1.index);
assert(m0.data == [ 1, 20,  3,  4, 50]);
assert(m1.data == [10, 20,  3,  4, 50]);

import mir.date: Date;

//////////////////////////////////////
// Constructs three time-series.
//////////////////////////////////////
auto index0 = [1,3,4];
auto data0 = [1.0, 3, 4];
auto series0 = index0.series(data0);

auto index1 = [1,2,5];
auto data1 = [10.0, 20, 50];
auto series1 = index1.series(data1);

auto index2 = [1, 6];
auto data2 = [100.0, 600];
auto series2 = index2.series(data2);

//////////////////////////////////////
// Merges multiple series into one.
//////////////////////////////////////
// Order is matter.
// The first slice has higher priority.
auto m0 = unionSeries(series0, series1, series2);
auto m1 = unionSeries(series1, series0, series2);
auto m2 = unionSeries(series2, series0, series1);

assert(m0.index == m1.index);
assert(m0.index == m2.index);
assert(m0.data == [  1, 20,  3,  4, 50, 600]);
assert(m1.data == [ 10, 20,  3,  4, 50, 600]);
assert(m2.data == [100, 20,  3,  4, 50, 600]);