Exploratieve data-analyse
CTR voorspellen met Machine Learning in Python
Kevin Huo
Instructor
Dieper in op features
print(df.columns)
['id', 'click', 'hour', 'C1', ... ]
print(df.dtypes)
id object
click int64
...
int: geheel getal:1,2, enz.float: decimalen:3.02,4.56, enz.object: string:"hello","world", enz.datetime: datum-tijd:2018-01-01, enz.
df.select_dtypes(
include=['int', 'float'])
click int64
...
Ontbrekende data
df.info()
Data columns (totaal 24 kolommen):
id 50000 non-null object
df['id'].isnull()
[False, False, False, False, ... ]
df.isnull().sum(axis = 0)
dtype: object
id 0
...
df.isnull().sum(axis = 0).sum()
0
Verdelingen bekijken
df.groupby(['search_engine_type',
'click']).size()
search_engine_type click
1002 0 940
1 240
...
df.groupby(['search_engine_type',
'click']).size().unstack()
click 0 1
search_engine_type
1002 940 240
...
Uitsplitsing op CTR
df.reset_index()
click search_engine_type 0 1
1002 940 240
df.rename(columns = {0: 'non_clicks'}, inplace = True)
click search_engine_type non_clicks clicks
1002 940 240
Laten we oefenen!
CTR voorspellen met Machine Learning in Python
