/// <summary>
/// Return the value at the given index.
///
/// Will throw if the index is out of bounds. Use <see cref="TryGetValue(long, out Value)"/> for non-throwing gets.
/// </summary>
public Value this[long rowIndex]
{
get
{
var translatedRowIndex = Parent.TranslateIndex(rowIndex);
Value value;
if (!Parent.TryGetValueTranslated(translatedRowIndex, TranslatedColumnIndex, out value))
{
long minLegal;
long maxLegal;
switch (Parent.Basis)
{
case BasisType.One:
minLegal = 1;
maxLegal = Parent.Metadata.NumRows;
break;
case BasisType.Zero:
minLegal = 0;
maxLegal = Parent.Metadata.NumRows - 1;
break;
default: throw new InvalidOperationException($"Unexpected Basis: {Parent.Basis}");
}
throw new ArgumentOutOfRangeException($"Row index out of range, valid between [{minLegal}, {maxLegal}] found {rowIndex}");
}
return(value);
}
}
/// <summary>
/// Returns the row at the given index (in the dataframe's basis).
///
/// Throws if the index is out of range.
/// </summary>
public Row this[long index]
{
get
{
var translatedIndex = Parent.TranslateIndex(index);
if (translatedIndex < 0 || translatedIndex >= Parent.Metadata.NumRows)
{
long minLegal;
long maxLegal;
switch (Parent.Basis)
{
case BasisType.One:
minLegal = 1;
maxLegal = Parent.Metadata.NumRows;
break;
case BasisType.Zero:
minLegal = 0;
maxLegal = Parent.Metadata.NumRows - 1;
break;
default: throw new InvalidOperationException($"Unexpected Basis: {Parent.Basis}");
}
throw new ArgumentOutOfRangeException(nameof(index), $"Row index out of range, valid between [{minLegal}, {maxLegal}] found {index}");
}
return(new Row(Parent, translatedIndex));
}
}
/// <summary>
/// Return the value at the given index.
///
/// Will throw if the index is out of bounds. Use <see cref="TryGetValue(long, out Value)"/> for non-throwing gets.
/// </summary>
public Value this[long columnIndex]
{
get
{
var translatedColumnIndex = Parent.TranslateIndex(columnIndex);
Value value;
if (!Parent.TryGetValueTranslated(TranslatedRowIndex, translatedColumnIndex, out value))
{
var rowIndex = Parent.UntranslateIndex(TranslatedRowIndex);
long minRowIx, minColIx, maxRowIx, maxColIx;
switch (Parent.Basis)
{
case BasisType.One:
minRowIx = 1;
maxRowIx = Parent.Metadata.NumRows;
minColIx = 1;
maxColIx = Parent.Metadata.Columns.Length;
break;
case BasisType.Zero:
minRowIx = 0;
maxRowIx = Parent.Metadata.NumRows - 1;
minColIx = 0;
maxColIx = Parent.Metadata.Columns.Length - 1;
break;
default: throw new InvalidOperationException($"Unexpected Basis: {Parent.Basis}");
}
throw new ArgumentOutOfRangeException($"Address out of range, legal range is [{minRowIx}, {minColIx}] - [{maxRowIx}, {maxColIx}], found [{rowIndex}, {columnIndex}]");
}
return(value);
}
}