Removed hardcoded data path in create_dha(), and added test of nan-robust corelation function using data/dha_missing.csv
Removed hardcoded data path in create_dha(), and added test of nan-robust corelation function using data/dha_missing.csv

JDReutt/BayesDB,poppingtonic/BayesDB,JDReutt/BayesDB,JDReutt/BayesDB,poppingtonic/BayesDB,JDReutt/BayesDB,poppingtonic/BayesDB,poppingtonic/BayesDB,poppingtonic/BayesDB,JDReutt/BayesDB