data science code snippets

gistfile1.txt

To randomize a dataset: shuf=data.iloc[np.random.permutation(len(data))] 
sh = shuf.reset_index(drop=true)

TO KNOW NULL
data.isnull().sum()

TO DELETE FROM DICT
del dna_counts['e']

RAMDOM FOREST
from sklearn.ensemble import RandomForestClassifier 
model= RandomForestClassifier(n_estimators=100,random_state=0)
X=diab[diab.columns[:8]]
Y=diab['Outcome']
model.fit(X,Y)
pd.Series(model.feature_importances_,index=X.columns).sort_values(ascending=False)