I received the following error message when launching H2O. How do I resolve the error?¶
Invalid flow_dir illegal character at index 12...
This error message means that there is a space (or other unsupported character) in your H2O directory. To resolve this error:
Create a new folder without unsupported characters to use as the H2O directory (for example,
Specify a different save directory using the
-flow_dirparameter when launching H2O:
java -jar h2o.jar -flow_dir test
How can I use Flow to export the prediction results with a dataset?¶
After obtaining your results, click the Combine predictions with frame button, then click the View Frame button.
How can I call Rapids expressions from Flow?¶
You can use the following to write a top level function and call Rapids expression from Flow:
flow.context.requestExec "expr goes here", (err, result) -> print if err then err else result #run this once: callRapids = (expr) -> flow.context.requestExec expr, (err, result) -> print if err then err else result # and then you can run this several times: callRapids 'the expr'