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Suppose the following df:

     Airplane_name   col2      col3     ...     colm
[1]     2352365236
[2]     6235231555
[3]     3463463435
        .
        .
        .
[n]     6497830120

Lets suppose that n=10^6.

What is the best way to work the airplane_name column?

One-hot encoding would cause too many columns. Should I leave that column as is, but convert it to a string?

Is it different for unique int values ​​than for unique string values? If the answer is "yes", what do you recommend?

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    $\begingroup$ Does this answer your question? Can identifiers be used to train a model? $\endgroup$
    – noe
    Mar 28 at 7:06
  • $\begingroup$ It gives me an intuitive idea of ​​how to solve the problem, thank you very much! $\endgroup$
    – Daniel_DS
    Mar 28 at 17:04
  • $\begingroup$ please, consider upvoting questions and answers that are useful to you. $\endgroup$
    – noe
    Mar 28 at 17:11

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