“indeks pandy” Kod odpowiedzi

Pandy do indeksu SQL

resultDf.to_sql('table_name', engine, schema="schema_name", if_exists="append", index=False)
Filthy Fowl

Wybierz wiersze z pandy DataFrame

from pandas import DataFrame

boxes = {'Color': ['Green','Green','Green','Blue','Blue','Red','Red','Red'],
         'Shape': ['Rectangle','Rectangle','Square','Rectangle','Square','Square','Square','Rectangle'],
         'Price': [10,15,5,5,10,15,15,5]
        }

df = DataFrame(boxes, columns= ['Color','Shape','Price'])

select_color = df.loc[df['Color'] == 'Green']
print (select_color)
Gleaming Guanaco

Wybierz Kolumny Pandas

df1 = df.iloc[:,0:2] # Remember that Python does not slice inclusive of the ending index.
Lazy Lion

indeks pandy

How to add index to the DataFrame at runtime

df["patient"] = ["patient-" + str( i ) for i in range( max( df.index ) + 1  )]
df.set_index( "patient", inplace=True )
---------------------------------------------------------------------                 
patient = pandas.Series( ["patient-" + str( i ) for i in range( max( df.index ) + 1 )] )
df.index = patient
---------------------------------------------------------------------
df.index = ["patient-" + str( i ) for i in range( max( df.index ) + 1 )]
Elated Echidna

Pandy definiują indeks

df.set_index('month')
       year  sale
month
1      2012    55
4      2014    40
7      2013    84
10     2014    31
Courageous Cod

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