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wcrichton's profile
Will Crichton
Will Crichton
Will Crichton
@wcrichton

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Will Crichton

@wcrichton

Articulating the ineffable. Programming language theory 🤝 cognitive psychology. PhD @Stanford

he/him
willcrichton.net
Joined September 2011

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    1. Will Crichton‏ @wcrichton 15 Jul 2020

      Pandas is such a unique learning experience. It's the only tool where my mental model changes substantively every time I use it. Yet, I find Pandas hard to "properly" learn because all the tutorials are boring stock market examples.

      1 reply 1 retweet 10 likes
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    2. Will Crichton‏ @wcrichton 15 Jul 2020

      There's infinite cases where I can articulate the high-level task, and have no idea how to accomplish it without a for loop & iterrows.

      2 replies 0 retweets 1 like
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    3. Aldrin‏ @drin_montana 15 Jul 2020
      Replying to @wcrichton

      out if curiosity, have you tried taking the tasks you do with for loop and iterrows and tried to translate them into something more "pandas native"?

      1 reply 0 retweets 0 likes
    4. Aldrin‏ @drin_montana 15 Jul 2020
      Replying to @drin_montana @wcrichton

      My knee jerk is that you probably want to break up operations instead of doing them all at once. like, maybe you're using a for loop to accumulate into variables, but you could make new columns and then aggregate them; something like that

      1 reply 0 retweets 0 likes
      Will Crichton‏ @wcrichton 15 Jul 2020
      Replying to @drin_montana

      The iterrows is a bit of an exaggeration. These days, it's usually -- I can't figure out a simple thing with a multi-index, so I do a complicated thing with a flat table. In the outlier example, I couldn't figure out broadcasting semantics between tables of different sizes.

      9:34 PM - 15 Jul 2020
      1 reply 0 retweets 0 likes
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        2. Will Crichton‏ @wcrichton 15 Jul 2020
          Replying to @wcrichton @drin_montana

          Come to think of it, 99% of my ongoing confusion usually arises from hierarchy and groups. Everything else is relatively easy (given past experience w/ SQL and functional list APIs).

          1 reply 0 retweets 0 likes
        3. Aldrin‏ @drin_montana 15 Jul 2020
          Replying to @wcrichton

          ah, this I can relate to, because that stuff confuses me even after looking at the examples and the docs for a long time. the behavior just doesn't seem to fit into my mental model at all.

          1 reply 0 retweets 0 likes
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