Stream notes

Video

Here’s the VOD:

Below is an embed

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Summary

1. Intro
   1. Admin and follow up on yesterday’s to dos
2. Coding
   1. Fitting Random Forests
   2. lattjorr asked a cool question: How do I compare two linear regression models? one cuts the amount of variables used by 2/3 but how to explain which is better using this Telco Customer Churn dataset
      1. Crono’s business answer: the model that is easier to explain to the people paying you and/or the one that captures most of the true behavior with less data
         1. This Quora discussion is better because there’s actual processes
      2. Found a discussion of F statistic that had improper language about p-value meaning and that derailed and talked about the controversy around p-values
         1. How the American Stastiscal Association feels about p-value misuse
         2. Older discussion about improper interpretations of p-values
         3. Using t tests to compare sample vs population means
      3. Related to my business focused answer above was a reddit post asking about what 20% tools people are using to do 80% of their work
   3. Suggested checking out the subreddits for datascience and statistics
   4. kmode has an exam in a super interesting subject: Uncertainty quantification
   5. Cat struggles to drink water from a faucet
   6. Want to chill out? Watch capybara
3. Music
   1. Italian Experimental Obscurities, Soundtracks and Library Music
   2. Guest Mix: Psychedelic Cumbia with Krishna Villar
   3. Records from Poland
   4. Reggae Inspired Japanese City Pop
4. We got raided by R4D4R_Live!
5. We raided AppleGlass (they/them)

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Shoutouts

Streamers who were active in chat

1. bedtimebear_808
2. valkeryias
3. R4D4R_Live
4. Yuka_with_Data

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To Do

Code

• [ ] How to change wordpress endpoint, specifically /admin
• [ ] send Leah the math derivations for decision trees
• [ ] Add custom function to look at the term frequency distributions
  • [ ] This is even what the scikit-learn docs do…they should just build it in to the algorithms…
• [ ] What is a good minimium document frequency for a term and what is a cutoff? 1/number of topics?
• [ ] Look at the example on sklearn for NMF and topic extraction
• [ ] Add tree visualization libraries to virtual environment: ETE or Graphviz (which is in sklearn now) or Plotly or treelib (which is the most simple)
• [ ] Sery bot for follow botting protection

Photo

• [ ] Try to see if the preview pane in Bridge can get shifted left a little