pandas - gestapelte Balkendiagramm mit Zeitreihendaten

Question

Ich versuche, ein gestapeltes Balkendiagramm in pandas unter Verwendung von Zeitreihendaten zu erzeugen:

 DATE  TYPE VOL 
    0 2010-01-01 Heavy 932.612903 
    1 2010-01-01 Light 370.612903 
    2 2010-01-01 Medium 569.451613 
    3 2010-02-01 Heavy 1068.250000 
    4 2010-02-01 Light 341.535714 
    5 2010-02-01 Medium 484.250000 
    6 2010-03-01 Heavy 1090.903226 
    7 2010-03-01 Light 314.419355 

X = Datum, Y = vol, stapelt = type jede Hilfe sehr geschätzt, danke.

Answer 1

Verwendung Pandas Grundstück Lassen Sie uns:

df = df.set_index('DATE') 
#moved the 'DATE' column into the index 

df.index = pd.to_datetime(df.index) 
#convert the string 'DATE' column to a datetime dtype 

df.set_index('TYPE',append=True)['VOL'].unstack().plot.bar(stacked=True,figsize=(10,8)) 
#Moved 'TYPE' into the index with 'DATE' then unstacked 'TYPE' to create a dataframe that has 'DATE' as row labels and 'TYPE' as column labels. And, then used pandas dataframe plot to chart that frame as a vertical bar chart with stacked=True.