text_plain_output_1.png
import pandas as pd

df = pd.read_csv('/kaggle/input/playground-series-s3e9/train.csv')
df.drop(columns='id', inplace=True)

df_add = pd.read_csv('/kaggle/input/predict-concrete-strength/ConcreteStrengthData.csv')
df_add.rename(columns={'CementComponent ': 'CementComponent'}, inplace=True)
print(f'the addition dataset shape is {df_add.shape}')
df = pd.concat([df, df_add])
print(f'the new dataset shape is {df.shape}')