fpath = "datas/beijing_tianqi/beijing_tianqi_2018.csv"
df = pd.read_csv(fpath)
df.loc[:,"bWendu"] = df["bWendu"].str.replace("℃","").astype('int32')
df.loc[:,"yWendu"] = df["yWendu"].str.replace("℃","").astype('int32')
print(df.describe())
print(df["bWendu"].mean())
print(df["bWendu"].max())
print(df["bWendu"].min())
print(df["fengxiang"].unique())
print(df["tianqi"].unique())
print(df["fengli"].unique())
print(df["fengxiang"].value_counts())
print(df["tianqi"].value_counts())
print(df["fengli"].value_counts())
print(df.cov())
print(df.corr())
print(df['aqi'].corr(df['bWendu']))
print(df['aqi'].corr(df['yWendu']))
print(df['aqi'].corr(df['bWendu']-df['yWendu']))
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