Renaming variables in H2O frame

[jij...@gmail.com]

Apologies H2O team if I've missed the answer on this somewhere - how can I rename variable name(s) on an H2O frame that has already been parsed?
If there is a way to do this I'd love an python code example.

Many thanks!

[Erin LeDell]

There are a few ways to do this (and actually a few different aliases to do the same thing, but I use the "columns" method since that's the name they use in Pandas). 

• http://docs.h2o.ai/h2o/latest-stable/h2o-py/docs/frame.html?highlight=columns#h2o.frame.H2OFrame.columns
  
• http://docs.h2o.ai/h2o/latest-stable/h2o-py/docs/frame.html?highlight=names#h2o.frame.H2OFrame.names
  

# replace the whole header
mydata.columns = ["colA", "colB"]

# replace a specific value
mydata.columns[5] = "colE"

-Erin

-- 
Erin LeDell Ph.D.
Statistician & Machine Learning Scientist | H2O.ai