When you're back: linear regression visualization and example from knn regression?

[nickeubank]

Hope the wedding went well!

I've done some drafting of my week for class 5, but I'm holding off on the "what's a linear regression" till I see these visualizations you mentioned and know the example you're using for knn regression (so I can carry that forward).

[kylebradbury]

Thanks so much, Nick - the wedding went very well!

Great content so far, by the way!

The example I'm using for Knn regression is the King's County house price dataset

As for figures, here's a few that may be of interest - let me know if you want the files for any of these! KNN Classification KNN Regression

Figures for R-squared:

Happy to chat about any of this, of course!

[nickeubank]

The example I'm using for Knn regression is the King's County house price dataset

Great! Is that something you've put in repo yet?

[kylebradbury]

Yes! Here are the readings about it: Regression for prediction applied Regression for prediction evaluated

And here's the dataset: Dataset

[nickeubank]

awesome, thank you!

If you have time:

I'd love a couple images built around that same "line through a cloud of dots" structure:

• one with the dots and a line, potentially with numbers on each dot
• one with dots and a line, plus vertical (colored) lines denoted each error (maybe with a label, like \epsilon_i where i is each dot's label?)

The squares make sense, but I fear might confuse things a little, and I'd rather make what constitutes an error clear, then I can talk about the squaring.

It would also be awesome to have a picture generalized to two regressions (so a 3-d plot) of the same. Would that be too hard to do?