Storing a conditional frequency distribution in Redis
The nltk.probability.ConditionalFreqDist class is a container for FreqDist instances, with one FreqDist per condition. It is used to count frequencies that are dependent on another condition, such as another word or a class label. We used this class in the Calculating high information words recipe in Chapter 7, Text Classification. Here, we'll create an API-compatible class on top of Redis using the RedisHashFreqDist from the previous recipe.
Getting ready
As in the previous recipe, you'll need to have Redis and redis-py installed with an instance of redis-server running.
How to do it...
We define a RedisConditionalHashFreqDist class in redisprob.py that extends nltk.probability.ConditionalFreqDist ...
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