/// <summary>
/// Performs an element-wise left shift on each column
/// </summary>
public DataFrame LeftShift(int value, bool inPlace = false)
{
DataFrame retDataFrame = inPlace ? this : new DataFrame();
for (int i = 0; i < Columns.Count; i++)
{
DataFrameColumn baseColumn = _columnCollection[i];
DataFrameColumn newColumn = baseColumn.LeftShift(value, inPlace);
if (inPlace)
{
retDataFrame.Columns[i] = newColumn;
}
else
{
retDataFrame.Columns.Insert(i, newColumn);
}
}
return(retDataFrame);
}