public static void Sort(Altaxo.Gui.Worksheet.Viewing.WorksheetController ctrl, bool ascending)
{
Altaxo.Collections.IAscendingIntegerCollection selectedDataColumns = ctrl.SelectedDataColumns;
if (0 == selectedDataColumns.Count)
{
selectedDataColumns = Altaxo.Collections.ContiguousIntegerRange.FromStartAndCount(0, ctrl.DataTable.DataColumnCount);
}
if (0 == ctrl.SelectedPropertyColumns.Count || 0 == selectedDataColumns.Count)
{
return;
}
Altaxo.Data.Sorting.SortDataColumnsByPropertyColumn(ctrl.DataTable, selectedDataColumns, ctrl.DataTable.PropCols[ctrl.SelectedPropertyColumns[0]], ascending);
}
private static bool IsEquidistant(double[] x, Altaxo.Collections.IAscendingIntegerCollection indices, double relthreshold)
{
if (indices.Count <= 1)
{
return(true);
}
int N = indices.Count;
double first = x[indices[0]];
double last = x[indices[N - 1]];
double spanByNM1 = (last - first) / (N - 1);
double threshold = Math.Abs(relthreshold * spanByNM1);
for (int i = 0; i < N; i++)
{
if (Math.Abs((x[indices[i]] - first) - i * spanByNM1) > threshold)
{
return(false);
}
}
return(true);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="collection">Collection of <see>DataColumns</see>.</param>
/// <param name="selectedColumns">Set set of indices into the collection that are part of the matrix.</param>
/// <param name="nRows">The number of rows that are part of the matrix. (Starting from index 0).</param>
public DataColumnToColumnMatrixWrapper(Altaxo.Data.DataColumnCollection collection, Altaxo.Collections.IAscendingIntegerCollection selectedColumns, int nRows)
{
_columns = new Altaxo.Data.INumericColumn[selectedColumns.Count];
for (int i = selectedColumns.Count - 1; i >= 0; i--)
{
_columns[i] = (Altaxo.Data.INumericColumn)collection[selectedColumns[i]];
}
_rows = nRows;
}
