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avibryant's profile
Avi Bryant
Avi Bryant
Avi Bryant
@avibryant

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Avi Bryant

@avibryant

Happiest when working on Random Forests from random beaches.

Galiano Island
avibryant.com
Joined November 2006

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    1. fred :oyster: benenson‏Verified account @fredbenenson 19 Nov 2013

      Is it demented to take pleasure when I can manage to make Redshift sweat?

      2 replies 0 retweets 0 likes
    2. Hadley Wickham‏Verified account @hadleywickham 20 Nov 2013
      Replying to @fredbenenson

      @fredbenenson any chance you're using redshift from R? I'm looking to make the experience smoother, but I don't have any big enough data

      2 replies 0 retweets 1 like
    3. Eleftherios‏ @lftherios 20 Nov 2013
      Replying to @hadleywickham

      @hadleywickham @fredbenenson same here guys. We use Redshift and R at SoundCloud as the main workflow for data analysis. Happy to chat.

      3 replies 0 retweets 0 likes
    4. Hadley Wickham‏Verified account @hadleywickham 20 Nov 2013
      Replying to @lftherios

      @eled22 @fredbenenson i.e. what sql are you running? I think switching between SQL & R has high cognitive cost

      1 reply 0 retweets 1 like
    5. fred :oyster: benenson‏Verified account @fredbenenson 20 Nov 2013
      Replying to @hadleywickham

      @hadleywickham One example might be: show me the most popular amount pledged per month: https://gist.github.com/fredbenenson/7566727 …

      1 reply 0 retweets 0 likes
    6. Hadley Wickham‏Verified account @hadleywickham 20 Nov 2013
      Replying to @fredbenenson

      @fredbenenson why use sum(1) and not rownumber() window function?

      2 replies 0 retweets 0 likes
    7. fred :oyster: benenson‏Verified account @fredbenenson 20 Nov 2013
      Replying to @hadleywickham

      @hadleywickham Redshift doesn't support ROWNUM() yet

      2 replies 0 retweets 0 likes
    8. Hadley Wickham‏Verified account @hadleywickham 20 Nov 2013
      Replying to @fredbenenson

      @fredbenenson also seems like bigquery's top would help: https://developers.google.com/bigquery/query-reference#top-function …

      1 reply 0 retweets 0 likes
    9. fred :oyster: benenson‏Verified account @fredbenenson 20 Nov 2013
      Replying to @hadleywickham

      @hadleywickham ooh, yeah, TOP seems cool -- curious what they're doing under the hood to make it perform better

      2 replies 0 retweets 0 likes
      Avi Bryant‏ @avibryant 20 Nov 2013
      Replying to @fredbenenson

      @fredbenenson @hadleywickham they mention it's approximate, so it'll be something like SpaceSaver or Count-min sketch.

      9:14 AM - 20 Nov 2013
      0 replies 0 retweets 0 likes

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