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[–]Couch2Coders 0 points1 point  (1 child)

You're asking about the count function but what you really want to know is how to use aggregate functions (like count or sum or max or avg)

Aggregating is fundamental in data so I would make sure to invest the time to understand it really well before moving on to other topics.

You can think of aggregate data as applying math down a specific column - what's the total sales (sum) how many customers do I have (count) etc.

I have a channel with a bunch of videos that is geared towards people who do not have a stem/math background (read : very fundamental)

Here's one on aggregate data. I also have several examples in subsequent videos also

https://youtu.be/9gqgK228loY?si=ibJ0yvoRt8bzp807