What is the meaning of “from sklearn.model_selection import train_test_split” this?
In my laptop in jupyter notebook I can’t access the keyword “sklearn”…it’s showing ModuleNotFound error
Regarding Pandas
hey @nirjona12001 ,
sklearn is a python package which contains various different classes and functions to make our code look optimized and modular.
This means that we are importing the model_selection class from sklearn package into our program and more specifically we need the train_test_split function to be used in our code.
You have not installed sklearn in your system, kindly install it using cmd command : pip install sklearn
I hope this would have resolved you doubt.
Thank You and Happy learning 
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What’s the use of “train_test_split” function?
take an example we have a dataset of 100 records, train_test_split function takes dataset and split size as parameters. So , consider if we take split_size as 0.2 ( 20% ), then it will split dataset into 80:20 ratio .
With this you can use these to check and validate your model performance before actual submitting the results.
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