Update docs of mojo visualisation for png format

[exalate-issue-sync]

Documentation for mojo tree visualization should be updated for --format png option which was added recently: [http://h2o-release.s3.amazonaws.com/h2o/rel-zahradnik/1/docs-website/h2o-docs/mojo-quickstart.html?highlight=printmojo|http://h2o-release.s3.amazonaws.com/h2o/rel-zahradnik/1/docs-website/h2o-docs/mojo-quickstart.html?highlight=printmojo]

this should appear in the end of “Viewing a MOJO Model” after R code snippet:

If Graphviz installation is troublesome on your environment, there is another option to produce picture output directly. Please note, that for this option Java 8 or higher is required.

// example output picture which is attached //

The following code snippet shows how to run the PrintMojo tool on the command line to make a .png file without usage of Graphviz.

{noformat}# download the latest stable h2o release from http://www.h2o.ai/download/

and run the PrintMojo tool from the command line.

java -cp h2o-genmodel.jar hex.genmodel.tools.PrintMojo --tree 0 -i mojo.zip -o tree.png --format png

open tree.png{noformat}

Note: h2o-genmodel.jar can be extracted from the running h2o instance like this:

{noformat}$ java -jar h2o.jar

Do this in a new terminal window. Note that H2O must still be running in terminal window #1

$ curl http://localhost:54321/3/h2o-genmodel.jar > h2o-genmodel.jar{noformat}

[h2o-ops]

JIRA Issue Migration Info

Jira Issue: PUBDEV-7462
Assignee: hannah.tillman
Reporter: Zuzana Olajcová
State: Resolved
Fix Version: 3.30.0.2
Attachments: Available (Count: 1)
Development PRs: Available

Linked PRs from JIRA

#4544

Attachments From Jira

Attachment Name: Tree1.png
Attached By: Zuzana Olajcová
File Link:https://h2o-3-jira-github-migration.s3.amazonaws.com/PUBDEV-7462/Tree1.png