PIG - Filter or how to get in side of a bag or tuple
<p>AS you can see we can apply filter to the first one because, we can used aggregate on the  temperature. Now how do we apply  the second filter on STRINGS?</p>

<p>We are only trying to filter e with conditions clear and partly cloudy. </p>

<pre><code>Weather = LOAD 'hdfs:/home/hduser/final/Weather.csv' USING PigStorage(',');
A = FOREACH Weather GENERATE (int)$0 AS year, (int)$1 AS month, (int)$2 AS day, (int)$4 AS temp, $14 AS cond, (double)$5 as dewpoint , (double)$10 as wind;


group_by_day = GROUP A BY (year,month,day);
</code></pre>

<p>Schema:</p>

<pre><code>   {day: (year: int,month: int, day: int), temperature {(temp: int)},                   

   condition: {cond: bytearray)}, dewPoint: {(dewpoint: double)} windSpeed:

   {(wind: double)}}
</code></pre>