![Machine learning best practices: detecting rare events two charts show under sampling and oversampling](https://blogs.sas.com/content/subconsciousmusings/files/2017/07/under_over_sampling-683x336.png)
This is the second post in my series of machine learning best practices. If you missed it, read the first post, Machine learning best practices: the basics. As we go along, all ten tips will be archived at this machine learning best practices page. Machine learning commonly requires the use of