I'm trying to create a model to predict a user's screen time based on a variety of factors. I created a model in Create ML which works for me but this obviously wouldn't work for anyone else. How do I basically create a new model in the app using a new csv table and keep on updating that model as the user records more data and updates the csv file? This is possible in playgrounds since I can use the CreateML framework but this isn't available on iOS.

I have a bar graph which I’ve created. Each bar is a UIView. You can tap on each bar and it’ll display its value in a label above. How make it so that you could just slide/pan over the bars and it would select whichever bar your finger is over at that moment.