Skip to content

Instantly share code, notes, and snippets.

@akrisanov
Last active April 18, 2023 17:45
Show Gist options
  • Save akrisanov/54b1905b635ff1fb9fb6a3627c421852 to your computer and use it in GitHub Desktop.
Save akrisanov/54b1905b635ff1fb9fb6a3627c421852 to your computer and use it in GitHub Desktop.
Yandex.Praktikum 🍂
import pandas as pd
data = pd.read_csv("/datasets/visits.csv", sep="\t")
data['local_time'] = (
pd.to_datetime(data['date_time'], format='%Y-%m-%dT%H:%M:%S')
+ pd.Timedelta(hours=3)
)
data['date_hour'] = data['local_time'].dt.round('1H')
data['too_fast'] = data['time_spent'] < 60
data['too_slow'] = data['time_spent'] > 1000
too_fast_stat = data.pivot_table(index='id', values='too_fast')
good_ids = too_fast_stat.query('too_fast < 0.5')
good_data = data.query('id in @good_ids.index')
good_data = good_data.query('60 <= time_spent <= 1000')
station_stat = data.pivot_table(index="id", values="time_spent", aggfunc="median")
good_station_stat = good_data.pivot_table(index="id", values="time_spent", aggfunc="median")
stat = data.pivot_table(index='name', values='time_spent')
good_stat = good_data.pivot_table(index='name', values='time_spent', aggfunc='median')
stat['good_time_spent'] = good_stat['time_spent']
name_stat = data.pivot_table(index='name', values='time_spent')
good_name_stat = good_data.pivot_table(index='name', values='time_spent', aggfunc='median')
name_stat['good_time_spent'] = good_name_stat['time_spent']
id_name = good_data.pivot_table(index='id', values='name', aggfunc=['first', 'count'])
id_name.columns = ['name', 'count']
station_stat_full = id_name.join(good_station_stat)
good_stat2 = (
station_stat_full
.query('count > 30')
.pivot_table(index='name', values='time_spent', aggfunc=['median', 'count'])
)
good_stat2.columns = ['median_time', 'stations']
final_stat = stat.join(good_stat2)
station_stat_multi = pd.pivot_table(data, index='id', values=['time_spent', 'too_fast', 'too_slow'])
print(station_stat_multi.corr())
pd.plotting.scatter_matrix(station_stat_multi, figsize=(9, 9))
Результат
time_spent too_fast too_slow
time_spent 1.000000 -0.640658 0.802247
too_fast -0.640658 1.000000 -0.255876
too_slow 0.802247 -0.255876 1.000000
Если долго стоять, то можно простоять слишком долго. А если быстро сбежать, то не больно-то и задержишься.
Как ни смешно, это окончательное подтверждение того, что вы отрезали ненужное там, где надо.
Если бы не получались результаты «капитана очевидность», пришлось бы вернуться и пришивать отрезанное на место.
import pandas as pd
data = pd.read_csv("/datasets/visits.csv", sep="\t")
data['local_time'] = (
pd.to_datetime(data['date_time'], yearfirst=True)
+ pd.Timedelta(hours=3)
)
data['date_hour'] = data['local_time'].dt.round('1H')
data['too_fast'] = data['time_spent'] < 60
data['too_slow'] = data['time_spent'] > 1000
too_fast_stat = data.pivot_table(index='id', values='too_fast')
good_ids = too_fast_stat.query('too_fast < 0.5')
good_data = data.query('id in @good_ids.index')
good_data = good_data.query('60 <= time_spent <= 1000')
station_stat = data.pivot_table(index="id", values="time_spent", aggfunc="median")
good_station_stat = good_data.pivot_table(index="id", values="time_spent", aggfunc="median")
stat = data.pivot_table(index='name', values='time_spent')
good_stat = good_data.pivot_table(index='name', values='time_spent', aggfunc='median')
stat['good_time_spent'] = good_stat['time_spent']
id_name = good_data.pivot_table(index='id', values='name', aggfunc=['first', 'count'])
id_name.columns = ['name', 'count']
station_stat_full = id_name.join(good_station_stat)
good_stat2 = (
station_stat_full
.query('count > 30')
.pivot_table(index='name', values='time_spent', aggfunc=['median', 'count'])
)
good_stat2.columns = ['median_time', 'stations']
final_stat = stat.join(good_stat2)
big_nets_stat = final_stat.query('stations > 10')
station_stat_full['group_name'] = (
station_stat_full['name']
.where(station_stat_full['name'].isin(big_nets_stat.index), 'Другие')
)
stat_grouped = (
station_stat_full
.query('count > 30')
.pivot_table(index='group_name', values='time_spent', aggfunc=['median', 'count'])
)
stat_grouped.columns = ['time_spent', 'count']
good_data['group_name'] = (
good_data['name']
.where(good_data['name'].isin(big_nets_stat.index), 'Другие')
)
for group_name, group_data in good_data.groupby('group_name'):
group_data.plot(kind='hist', y='time_spent', bins=50, title=group_name)
@akrisanov
Copy link
Author

image

image

image

image

image

image

image

image

image

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment