Flow ---- **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, ``C:\h2o``). or - Specify a different save directory using the ``-flow_dir`` parameter 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'