関連ワード:  matplotlib plot two series on same graph    python plot two series on same graph    python plot two time series on same graph    matplotlib plot multiple data sets on same graph    matplotlib plot two lines on same graph    matplotlib plot two graphs on same figure    matplotlib two plots on same graph    python plot two lines on same graph    python plot two datasets on same graph    matplotlib plot multiple lines on same graph  
結果 : matplotlib plot two series on same graph