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  3. Dimensionality Reduction in Python

Exercise

Removing features without variance

A sample of the Pokemon dataset has been loaded as pokemon_df. To get an idea of which features have little variance you should use the IPython Shell to calculate summary statistics on this sample. Then adjust the code to create a smaller, easier to understand, dataset.

Instructions 1/3

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  • Use the .describe() method to find the numeric feature without variance and remove its name from the list assigned to number_cols.