public DataFrame(IEnumerable <TColumn> columnHeaders, IEnumerable <ImmutableList <double> > dataColumns)
{
ColumnHeaders = ImmutableList.ValueOf(columnHeaders);
DataColumns = ImmutableList.ValueOf(dataColumns);
if (ColumnHeaders.Count == 0)
{
throw new ArgumentException(nameof(columnHeaders));
}
if (ColumnHeaders.Count != DataColumns.Count)
{
throw new ArgumentException(@"Wrong number of data columns", nameof(dataColumns));
}
if (DataColumns.Select(col => col.Count).Distinct().Count() > 1)
{
throw new ArgumentException(@"All data columns must have the same number of rows", nameof(dataColumns));
}
for (int iColumn = 0; iColumn < DataColumns.Count; iColumn++)
{
var col = DataColumns[iColumn];
for (int iRow = 0; iRow < col.Count; iRow++)
{
var value = col[iRow];
if (double.IsNaN(value) || double.IsInfinity(value))
{
throw new ArgumentException(string.Format(@"{0} found at row {1} column {2}", value, iRow, iColumn), nameof(dataColumns));
}
}
}
}
public DataFrame ReorderRows(IList <int> newOrdering)
{
return(new DataFrame(ColumnHeaders, DataColumns.Select(col => ImmutableList.ValueOf(Reorder(col, newOrdering)))));
}