Pandas index

Select columns pandas

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

Source: stackoverflow.com

Select rows from dataframe pandas

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)

Source: datatofish.com

Pandas index

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 )]

Pandas to sql index

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

Source: stackoverflow.com

Df.index

The index (row labels) of the DataFrame.

Similar codes

1 vote141 views2 answers
Get chunks of a mp4 in ffmpeg
C
1 vote128 views2 answers
Arduino ip to string
C
0 vote147 views1 answer
How to run c program from visual studio terminal
C
0 vote137 views1 answer
/usr/bin/mandb: fopen /var/cache/man/7935: Permission denied
C
1 vote132 views2 answers
Fgfgfgfgfgfgheheheheheh
C
1 vote133 views1 answer
Gcc undefined reference to initscr'
C
2 votes166 views1 answer
C bitwise integer absolute value
C
0 vote127 views4 answers
Coin row problem calculator
C
0 vote142 views2 answers
Youtube code
C
0 vote136 views2 answers
Convert calendar time to epoch in c programming
C