To: user@pig.apache.org
Subject: Re: finding mean and standard deviation
Hi,
in = load 'in.txt' using PigStorage(',') as (merchant:int, customer:int,
amount:float);
perMerchant = group in by merchant;
avg = foreach perMerchant generate group, AVG(in.amount);
dump avg;
This returns (merchant_id
Hi,
I have a huge text file of form
data is saved in directory data/data1.txt, data2.txt and so on
merchant_id, user_id, amount
1234, 9123, 299.2
1233, 9199, 203.2
1234, 0124, 230
and so on..
What I want to do is for each merchant, find the average amount..
so basically in the end i
Hi,
in = load 'in.txt' using PigStorage(',') as (merchant:int, customer:int,
amount:float);
perMerchant = group in by merchant;
avg = foreach perMerchant generate group, AVG(in.amount);
dump avg;
This returns (merchant_id, avg of amount) as follows:
(1233,203.169482422)
Hi,
Thanks for replying.
Err I am a new here.
I am trying to find the info as in what is UDF?
On Tue, Sep 25, 2012 at 10:41 PM, Cheolsoo Park cheol...@cloudera.comwrote:
Hi,
in = load 'in.txt' using PigStorage(',') as (merchant:int, customer:int,
amount:float);
perMerchant = group in by
Oh, sure. Please find more info about UDF here:
http://pig.apache.org/docs/r0.10.0/udf.html
On Tue, Sep 25, 2012 at 8:16 PM, jamal sasha jamalsha...@gmail.com wrote:
Hi,
Thanks for replying.
Err I am a new here.
I am trying to find the info as in what is UDF?
On Tue, Sep 25, 2012 at
