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14 changes: 10 additions & 4 deletions q01_myXGBoost/build.py
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@@ -1,3 +1,4 @@
# %load q01_myXGBoost/build.py
import pandas as pd
from xgboost import XGBClassifier
from sklearn.model_selection import train_test_split
Expand All @@ -11,13 +12,18 @@
y = dataset.iloc[:, -1]
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.33, random_state=9)

param_grid1 = {"max_depth": [2, 3, 4, 5, 6, 7, 9, 11],
"min_child_weight": [4, 6, 7, 8],
"subsample": [0.6, .7, .8, .9, 1],
"colsample_bytree": [0.6, .7, .8, .9, 1]
param_grid1 = {'max_depth': [2, 3, 4, 5, 6, 7, 9, 11],
'min_child_weight': [4, 6, 7, 8],
'subsample': [0.6, .7, .8, .9, 1],
'colsample_bytree': [0.6, .7, .8, .9, 1]
}


# Write your solution here :
def myXGBoost(X_train,X_test,y_train,y_test,model,param_grid,KFold=3,**kwargs):
grid_search = GridSearchCV(estimator=model,param_grid=param_grid,cv=KFold)
grid_search.fit(X_train,y_train)
return grid_search.score(X_test,y_test),grid_search.best_params_
myXGBoost(X_train,X_test,y_train,y_test,XGBClassifier(seed=9),param_grid1,3)


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15 changes: 11 additions & 4 deletions q02_param2/build.py
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@@ -1,20 +1,27 @@
# %load q02_param2/build.py
# Default imports
from sklearn.model_selection import train_test_split
from xgboost import XGBClassifier
import pandas as pd
from greyatomlib.Xgboost_project.q01_myXGBoost.build import myXGBoost

from sklearn.model_selection import GridSearchCV
# load data
dataset = pd.read_csv('data/loan_clean_data.csv')
# split data into X and y
X = dataset.iloc[:, :-1]
y = dataset.iloc[:, -1]
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.33, random_state=9)

param_grid2 = {"gamma": [0, 0.05, 0.1, 0.3, 0.7, 0.9, 1],
"reg_alpha": [0, 0.001, 0.005, 0.01, 0.05, 0.1],
"reg_lambda": [0.05, 0.1, 0.5, 1.0]
param_grid2 = {'gamma': [0, 0.05, 0.1, 0.3, 0.7, 0.9, 1],
'reg_alpha': [0, 0.001, 0.005, 0.01, 0.05, 0.1],
'reg_lambda': [0.05, 0.1, 0.5, 1.0]
}


# Write your solution here :
def param2(X_train, X_test, y_train, y_test, model, param_grid2):
return myXGBoost(X_train, X_test, y_train, y_test, model, param_grid2,
colsample_bytree=0.7, subsample=0.8, max_depth=2, min_child_weight=4)
param2(X_train,X_test,y_train,y_test,XGBClassifier(seed=9),param_grid2)


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11 changes: 11 additions & 0 deletions q03_xgboost/build.py
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@@ -1,3 +1,4 @@
# %load q03_xgboost/build.py
# Default imports
from sklearn.model_selection import train_test_split
from xgboost import XGBClassifier
Expand All @@ -13,5 +14,15 @@


# Write your solution here :
def xgboost(X_train,X_test,y_train,y_test,**kwargs):
xgb = XGBClassifier(**kwargs,seed=9)
xgb.fit(X_train,y_train)
return xgb.score(X_test,y_test)

xgboost(X_train, X_test, y_train, y_test,subsample=0.8,
colsample_bytree=0.7, max_depth=2,
min_child_weight=4, reg_alpha=0, reg_lambda=1.0,
gamma=0,n_estimators=100,learning_rate=0.1)



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