How do I use Classification Learner with datetime value predictors?

I have a large table of sensor data that I would like to run through a binary classification tree. Some of my column variables in the table are dates, which I would like to specify as possible predictors. I tried importing into the Classification Learner as datetime values. It didn't work, and it was marked as "unsuitable".

How do I use datetime values as predictors in Classification Learner App?

Answer 1

[MathWorks Support Team]

The Classification Learner App does not currently support datetime values. Our developers have been made aware of this issue and will consider it for future releases.

As a workaround, it is recommended to convert the datetime values using the "datenum" function. This simply converts the datetime value into a double that represents a serial date number. Please refer to the example code below:

>> table.date_1 = datenum(table.date_1)

Documentation for "datenum" function:

https://www.mathworks.com/help/matlab/ref/datenum.html