private static Plot GetTrendChart(IEnumerable <PlotData> data, string referenceFactor, string timeFactor)
{
var plot = new Plot();
var orderedGroupingData = data
.OrderBy(d => d.Time)
.GroupBy(bd => bd.Group);
foreach (var grouping in orderedGroupingData)
{
var(xs, ys) = grouping.Aggregate((xs: new List <double>(), ys: new List <double>()), (seed, group) =>
{
if (@group.Value.HasValue)
{
seed.ys.Add(group.Value.Value);
seed.xs.Add(group.Time.Value.ToOADate());
}
return(seed);
}, tuple => (tuple.xs.ToArray(), tuple.ys.ToArray()));
var naturalSpline = new NaturalSpline(xs, ys, 20);
var randomColor = DataGen.RandomColor(new Random());
plot.PlotScatter(xs, ys, randomColor, markerSize: 10, lineWidth: 0);
plot.PlotScatter(naturalSpline.interpolatedXs, naturalSpline.interpolatedYs, randomColor, markerSize: 3, label: grouping.Key);
}
return(plot);
}
