As I understand, the attendance is nominal categorical variable. Why have we represented using ordinal measures? We should have used two dummy variables. or where am I wrong ?

Hey Swarntam, Thank you for your question! When working with categorical variables, we need to transform the possible outcomes in a way that is suitable for performing calculations. Therefore, we need to assign each outcome a number. These numbers will inevitably come in order, as numbers are ordinal in nature. Whenever the categorical variable is binary, it is most convenient to represent the outcomes as 0 and 1. It doesn't matter which number you assign to either of the outcomes. Having used Yes as 0 and No as 1 would've solved the problem equally well. The only thing that would've changed are the coefficients. Hope this answer helps! Kind regards, 365 Hristina

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Swarntam Saurav

Last answered:

21 Mar 2022

Posted on:

20 Mar 2022

Why attendance was represented with 0 and 1 ?

in Machine Learning in Python / Dealing with categorical data - Dummy variables

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Hristina Hristova

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Posted on:

21 Mar 2022

Why attendance was represented with 0 and 1 ?

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