'Add the contents of a Numpy array to summary table
Parameters
array : numpy array (2D)
float_format: string
Formatting to array if type is float
align : string
Data alignment (l/c/r)'

def add_array(self, array, align='r', float_format='%.4f'):

    table = pd.DataFrame(array)
    self.add_df(table, index=False, header=False, float_format=float_format, align=align)
