Fixed error when constructing a DataFrame from 0 rows
Fixed error when constructing a DataFrame from 0 rows

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