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import matplotlib.pyplot as plt

import numpy as np

import numpy as np # linear algebra

import pandas as pd

import pandas as pd # data processing, CSV file I/O (e.g. pd.read_csv)

import seaborn as sns

train = pd.read_csv('/kaggle/input/titanic/train.csv')
test = pd.read_csv('/kaggle/input/titanic/test.csv')

train.shape

train.isnull().sum()

mask = np.triu(train.drop(['PassengerId'], axis=1).corr())

train.describe(exclude='object')