sentisignal.py 文件源码

def apply_rolling_window(df, width):
    df = df.ix[1:, :]
    df_num = df.select_dtypes(include=[np.float, np.int])
    df_non_num = df.select_dtypes(exclude=[np.float, np.int])
    df_num_window = pd.rolling_mean(df_num, width, min_periods=1)
    df_window = pd.concat([df_non_num, df_num_window], axis=1)
    return df_window