18 Dec 2022

Posted on:

02 Nov 2022

1

# Dates are categorical?

Why are dates categorical?  They have numerical value.  You can add or subtract them, and calculate their mean.

Posted on:

04 Nov 2022

0

As per me: Because, we cannot have meaningful  stuff in business perspective out of doing manipulation on dates. Like what would be use of calculation of mean of dates as per you? Same was thing with customer id in real-life example of traditional data (previous video). As it was sequenced, ordered and numerical number but doing mathematical manipulation on it won't led to any useful result.

Posted on:

04 Nov 2022

1

Hi.  "What would be use of calculation of mean of dates as per you?  Suppose I have aggregate insurance data by policy year, and I want to apply an inflation factor from the average date of the policy year to today.  Suppose that policy year is from October 1, 2021 to September 20, 2022.  I would think taking an average of those two dates IS meaningful.

Posted on:

05 Nov 2022

0

Sorry, I naively gave my pov🥶 . Sorry for incorrect explanation if it is. Let's wait and hope soon instructor provides correct answer to the same.

Instructor
Posted on:

18 Dec 2022

0