An implementation of the Apriori Algorithm, published by Rakesh Agrawal and Ramakrishnan Srikant in 1994, in Go.
I've made some modifications that increase performance by over 50x.
pickleback <minimum support> /path/to/transactions.json /path/to/outfile.csv
# e.g.
pickleback 5 sample_transactions.json tmp/results.csv