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gregsexton

93 karma · joined May 16, 2011

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gregsexton··on A good day to trie-hard: saving compute 1% at a time
The presented data for demonstrating a win doesn't have enough power to actually show this - not enough samples were taken.

A very simple analysis in R:

    > prop.test(c(9, 4), c(1103,1171))

    2-sample test for equality of proportions with continuity correction

    data:  c(9, 4) out of c(1103, 1171)
    X-squared = 1.4915, df = 1, p-value = 0.222
    alternative hypothesis: two.sided
    95 percent confidence interval:
    -0.002409831  0.011897193
    sample estimates:
        prop 1      prop 2 
    0.008159565 0.003415884
A p-value of 0.22 isn't below the magic 0.05 and the 95% confidence interval suggests that the trie might actually be slightly worse.

I imagine the trie is better, given the prior analysis, and there is weak evidence for this. But take (a lot) more samples and know with confidence how much better.

gregsexton··on How a car works (2012)
I would love to own a print copy. Do you have any plans to publish?
gregsexton··on Show HN: Emacs org mode integration with IPython
Yes. I use evil mode with it.
gregsexton··on The single most useful Emacs feature
Have you tried `:help :match`? I'm not sure if I'm missing anything but this seems to do the same thing.