def transpose_df(spreadsheet_df):
    """ Basic transformation dataframe to dataframe: transpose of input spreadsheet.

    Args:
        spreadsheet_df: normal orientation is genes (features aka rows) X samples (columns).

    Returns:
        transpose_df:   input orientation transposed without change of data values, i.e.
                        genes x samples transposed is samples x genes.
    """
    transpose_df = spreadsheet_df.copy()
    return transpose_df.transpose()