public void Feed(IEnumerable <Row> rows, ColumnViewModel numerical)
{
DescriptiveStatisticsViewModel result = DescriptiveStatistics.Analyze(
DataContext as MainPageViewModel,
rows.Select(r => (Double)r.Cells[numerical.Index].Content)
);
HistogramElement.VerticalAxisTitle = Const.Loader.GetString("Frequency");
HistogramElement.Width = this.Width - 20; // (Double)App.Current.Resources["ParagraphWidth"] - 20;
HistogramElement.Height = this.Height - 70;
BoxPlotElement.Width = this.Width - 90; // (Double)App.Current.Resources["ParagraphWidth"] - 90;
BoxPlotElement.Min = result.Min;
BoxPlotElement.Max = result.Max;
BoxPlotElement.FirstQuartile = result.FirstQuartile;
BoxPlotElement.Median = result.Median;
BoxPlotElement.ThirdQuartile = result.ThirdQuartile;
BoxPlotElement.Mean = result.Mean;
BoxPlotElement.Update();
d3.Scale.Linear linear = new d3.Scale.Linear()
{
DomainStart = result.Min,
DomainEnd = result.Max,
RangeStart = 0,
RangeEnd = 1
};
linear.Nice();
List <Bin> bins = HistogramCalculator.Bin(
linear.DomainStart,
linear.DomainEnd,
linear.Step,
rows,
numerical
).ToList();
if (numerical.SortOption == SortOption.Descending)
{
bins = bins.OrderByDescending(b => b.Min).ToList();
}
else
{
bins = bins.OrderBy(b => b.Min).ToList();
}
HistogramElement.Data =
bins
.Select(d => new BarChartDatum()
{
Key = $"~{Formatter.Auto(d.Max)}",
ColumnViewModel = numerical,
Value = d.Rows.Count(),
EnvelopeValue = d.Rows.Count(),
Rows = null,
EnvelopeRows = d.Rows
}).ToList();
}
