인프런 커뮤니티 질문&답변

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  코드 작성하고 실행 시켰는데 세션이 다운됐어요. 왜 이런걸까요??
  
  코랩 자체에서 무료 제공하는 리소스를 모두 소진한 줄 알았는데, 다른 문제들에 대해서는 아직 잘 돌아갑니다.
  
  제가 작성한 코드도 같이 올려둘게요!

import pandas as pd

from sklearn.ensemble import RandomForestRegressor

from sklearn.model_selection import train_test_split

from sklearn.metrics import mean_squared_error

df1 = pd.read_csv('/content/drive/MyDrive/bigdata(빅분기 놀이터)/작업형2 모의문제/모의문제 2번/train.csv')

# print(df1.head())

# print(df1.info())

# print(df1.shape)

df2 = pd.read_csv('/content/drive/MyDrive/bigdata(빅분기 놀이터)/작업형2 모의문제/모의문제 2번/test.csv')

# print(df2.head())

# print(df2.info())

# print(df2.shape)

df1['name'] = df1['name'].fillna(df1['name'].mode()[0])

df1['host_name'] = df1['host_name'].fillna(df1['name'].mode()[0])

df1['last_review'] = df1['last_review'].fillna(df1['name'].mode()[0])

df1['reviews_per_month'] = df1['reviews_per_month'].fillna(df1['reviews_per_month'].median())

df2['name'] = df2['name'].fillna(df2['name'].mode()[0])

df2['host_name'] = df2['host_name'].fillna(df2['name'].mode()[0])

df2['last_review'] = df2['last_review'].fillna(df2['name'].mode()[0])

df2['reviews_per_month'] = df2['reviews_per_month'].fillna(df2['reviews_per_month'].median())

x = df1.drop('price', axis=1)

y = df1['price']

x_encoded = pd.get_dummies(x)

x_train, x_valid, y_train, y_valid = train_test_split(x_encoded.drop('id', axis=1), y, test_size=0.25)

md = RandomForestRegressor(n_estimators=300)

md.fit(x_train, y_train)

pred = md.predict(x_valid)

print(mean_squared_error(y_valid, pred)) # MSE

print(mean_squared_error(y_valid, pred, squared=False)) # RMSE

x_test = df2

x_test_encoded = pd.get_dummies(x_test)

md = RandomForestRegressor(n_estimators=300)

md.fit(x_encoded.drop('id', axis=1), y)

pred = md.predict_proba(x_test_encoded.drop('id', axis=1))

print(pred)

print(pred.shape)

result = pd.DataFrame({'id' : df2['id'], 'price' : pred })

result.to_csv('작업형2 모의문제 2번.csv', index=False)