Fail on R error (#173)

Author: algattik

diabetes_regression/training/R/train_with_r.py

@@ -1,3 +1,3 @@
-import os
+import subprocess
 
-os.system("Rscript r_train.r && ls -ltr model.rds")
+subprocess.check_call(["bash", "-c", "Rscript r_train.r && ls -ltr model.rds"])