Code for text mining through Bayes Classifier?

I am looking for an example of text mining problem through Bayes Classifier. The problem under consideration is analyzing news text for stock market prediction.

Answer 1

[Sarah Palfreyman]

See Text Analytics Toolbox

Answer 2

[Christopher Creutzig]

MathWorks has examples like this one using classifiers from the Statistics and Machine Learning Toolbox to work on text data. The main problem with converting this to using a naïve Bayes algorithm is that fitcnb is not optimized to work with high-dimensional sparse data, such as a basic word count.

To alleviate that problem, use a dimensionality reduction step, such as fitlsa.