Doubt in the article on parameter tunning of xgboost in python

IN the article on xgboost parameter tunning in python of analyticsc vidhya-


The testing of accuracy and auc score is done with the same data which was used for training the modell in the first case so I wanted to know why?

Hi @raghav01,

For hyperparameter search, we have used GridsearchCV, which returns the cross validation scores.

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