That worked except that for some reason, there's a lot of data that is missing in the final output (compared to what it should return).
For example, the file I load has these lines: 7 25 us darkspear a Redacted 4750 5000 1 8 25 us emerald-dream a Lornadoome 9500 10000 1 21 25 eu khadgar a Haiibanklol 769499 809999 1 7 25 us queldorei a Worfgt 27862 34827 1 3 25 us antonidas a Oldcrafter 19000 20000 1 However, when I load up the script http://pastebin.com/Bk8RBAHt (now grouped on only one column), I don't have any records with 25 as the key. The first 5 rows in my tsv files are 35 3.19973415E7 36 122914.0 37 50000.0 38 416099.9 39 901333.8571428572 43 191496.5 44 236454.0 I really have no idea where the missing rows went :\ -- Pierre-Luc Brunet ZeStuff - http://www.zestuff.com Phone: (877) 5ZESTUFF Mobile: (514) 600-0234 Email: [email protected] 9320 Saint-Laurent, #502 Montreal, QC, Canada, H2N 1N7 On 2011-09-08, at 8:45 PM, Xiaomeng Wan wrote: > you can change > > GENERATE group, auctionsPrice.price AS price:tuple, p5 AS p5, p95 AS p95; > to > GENERATE FLATTEN(group) as (item, region, realm, faction), > FLATTEN(auctionsPrice.price) AS price, p5 AS p5, p95 AS p95; > > then regroup after the foreach block > > p2 = FILTER p1 BY (price >= p5 AND price <= p95); > p2a = group p2 by (item, region, realm, faction); > p3 = FOREACH p2a GENERATE group, AVG(p2.price) AS price; > > or write you own UDF to get the average within the foreach block. It > would be ideal if we can move p2 statement into the foreach block like > this: p2 = filter autionsPrice by price >= p5 and price <= p95, but i > donot think it is supported right now. > > Shawn > > > On Thu, Sep 8, 2011 at 5:54 PM, Pierre-Luc Brunet <[email protected]> wrote: >> Heya! >> >> I've been trying to do something with Pig for about 4 days now and I have >> nothing but failure to show for it. I was wondering if anybody could look at >> my queries and slap some sense into me? I've uploaded the queries to >> pastebin: http://pastebin.com/kzMxYwrY >> >> In short, I want to take my data, group it by 4 fields, then for each group, >> I want to: >> - Find out the 5th and the 95th percentile for the 'price' >> - Filter each group to remove the records that are < 5th percentile and > >> 95 percentile. >> >> Then for each group, I want to grab the AVG() of what's left. >> >> I tried many variations of the same code and always ended up with either >> "incompatible types in GreaterThanEqual Operator" or "Scalar has more than >> one row in the output." >> >> Any help would be greatly appreciated. Thanks! :) >> -- >> Pierre-Luc Brunet >>
