Analysis of feelings of USA

Example of MapReduce wrote in python that analyse the feelings of 95.580 twits from USA.

Map chart video

for execute :

• In shell:

$ cat twits | ./mapper.py | sort | ./reducer.py

• In haddop:

$ hadoop jar /usr/lib/hadoop-mapreduce/hadoop-streaming.jar  -files mapper.py,reducer.py,states,dic.txt -mapper mapper.py -reducer reducer.py -input twits -output output