/// <summary>
/// Performs an element-wise subtraction on each column
/// </summary>
public DataFrame Subtract <T>(T value, bool inPlace = false)
where T : unmanaged
{
DataFrame retDataFrame = inPlace ? this : new DataFrame();
for (int i = 0; i < Columns.Count; i++)
{
DataFrameColumn baseColumn = _columnCollection[i];
DataFrameColumn newColumn = baseColumn.Subtract(value, inPlace);
if (inPlace)
{
retDataFrame.Columns[i] = newColumn;
}
else
{
retDataFrame.Columns.Insert(i, newColumn);
}
}
return(retDataFrame);
}
public DataFrame Subtract <T>(IReadOnlyList <T> values, bool inPlace = false)
where T : unmanaged
{
if (values.Count != Columns.Count)
{
throw new ArgumentException(Strings.MismatchedColumnLengths, nameof(values));
}
DataFrame retDataFrame = inPlace ? this : new DataFrame();
for (int i = 0; i < Columns.Count; i++)
{
DataFrameColumn baseColumn = _columnCollection[i];
DataFrameColumn newColumn = baseColumn.Subtract(values[i], inPlace);
if (inPlace)
{
retDataFrame.Columns[i] = newColumn;
}
else
{
retDataFrame.Columns.Insert(i, newColumn);
}
}
return(retDataFrame);
}