/// <summary>
/// Raises an exception if two columns do not have the same
/// shape or are two much different.
/// </summary>
/// <param name="col">columns</param>
/// <param name="precision">precision</param>
/// <param name="exc">raises an exception if too different</param>
/// <returns>max difference</returns>
public double AssertAlmostEqual(IDataColumn col, double precision = 1e-5, bool exc = true)
{
var colt = (col is NumericColumn ? (col as NumericColumn).Column : col) as DataColumn <DType>;
if (colt is null)
{
throw new DataValueError(string.Format("Column types are different {0} != {1}",
GetType(), col.GetType()));
}
if (Length != colt.Length)
{
throw new DataValueError(string.Format("Column have different length {0} != {1}",
Length, colt.Length));
}
if (Kind.IsVector())
{
double oks = 0;
for (int i = 0; i < Length; ++i)
{
switch (Kind.ItemType().RawKind())
{
case DataKind.Boolean:
oks += NumericHelper.AssertAlmostEqual((_data as VBufferEqSort <bool>[])[i].DenseValues().ToArray(),
(colt._data as VBufferEqSort <bool>[])[i].DenseValues().ToArray(),
precision, exc);
break;
case DataKind.Int32:
oks += NumericHelper.AssertAlmostEqual((_data as VBufferEqSort <int>[])[i].DenseValues().ToArray(),
(colt._data as VBufferEqSort <int>[])[i].DenseValues().ToArray(),
precision, exc);
break;
case DataKind.UInt32:
oks += NumericHelper.AssertAlmostEqual((_data as VBufferEqSort <uint>[])[i].DenseValues().ToArray(),
(colt._data as VBufferEqSort <uint>[])[i].DenseValues().ToArray(),
precision, exc);
break;
case DataKind.Int64:
oks += NumericHelper.AssertAlmostEqual((_data as VBufferEqSort <Int64>[])[i].DenseValues().ToArray(),
(colt._data as VBufferEqSort <Int64>[])[i].DenseValues().ToArray(),
precision, exc);
break;
case DataKind.Single:
oks += NumericHelper.AssertAlmostEqual((_data as VBufferEqSort <float>[])[i].DenseValues().ToArray(),
(colt._data as VBufferEqSort <float>[])[i].DenseValues().ToArray(),
precision, exc);
break;
case DataKind.Double:
oks += NumericHelper.AssertAlmostEqual((_data as VBufferEqSort <double>[])[i].DenseValues().ToArray(),
(colt._data as VBufferEqSort <double>[])[i].DenseValues().ToArray(),
precision, exc);
break;
case DataKind.String:
oks += NumericHelper.AssertAlmostEqual((_data as VBufferEqSort <DvText>[])[i].DenseValues().ToArray(),
(colt._data as VBufferEqSort <DvText>[])[i].DenseValues().ToArray(),
precision, exc);
break;
default:
throw new DataTypeError($"Unable to handle kind '{Kind}'");
}
}
return(oks);
}
else
{
switch (Kind.RawKind())
{
case DataKind.Boolean:
return(NumericHelper.AssertAlmostEqual(_data as bool[], colt._data as bool[], precision, exc, Length, colt.Length));
case DataKind.Int32:
return(NumericHelper.AssertAlmostEqual(_data as int[], colt._data as int[], precision, exc, Length, colt.Length));
case DataKind.UInt32:
return(NumericHelper.AssertAlmostEqual(_data as uint[], colt._data as uint[], precision, exc, Length, colt.Length));
case DataKind.Int64:
return(NumericHelper.AssertAlmostEqual(_data as long[], colt._data as long[], precision, exc, Length, colt.Length));
case DataKind.Single:
return(NumericHelper.AssertAlmostEqual(_data as float[], colt._data as float[], precision, exc, Length, colt.Length));
case DataKind.Double:
return(NumericHelper.AssertAlmostEqual(_data as double[], colt._data as double[], precision, exc, Length, colt.Length));
case DataKind.String:
return(NumericHelper.AssertAlmostEqual(_data as DvText[], colt._data as DvText[], precision, exc, Length, colt.Length));
default:
throw new DataTypeError($"Unable to handle kind '{Kind}'");
}
}
}