Typos corrected in lda_analysis.py
Merge pull request #54 from elenagr/master

Added unitnorm as an option to create corpus
Merge pull request #55 from elenagr/master

Option to read an existing corpus from create_corpus.py
Merge pull request #56 from elenagr/master

k-means: Option to compute the optimal number of clusters using the inertia param...
Added nb_kfolds.py and links.py codes
Merge pull request #57 from emsiepopples/master

New code and edits to lda
Added option to save model to file
Merge pull request #58 from emsiepopples/master

Added option to save model to file
LSI code extended to show both corpus topics with their component words, and also the weights of each topic within an input entry
Wrong lsi.py file added, now corrected
Merge pull request #59 from ilanfri/master

LSI file improved
Option to compute the optimal number of clusters using the inertia parameter or the statistical gap
Little bug fixed