Computed Columns

An awesome Kibana plugin.

This visualization plugin is like a table, but with computed columns. Every new columns is a computation from normal basics columns. Every new column has it own expression (e.g. col[0] * col[1] / 100).

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Considerations

• Any mathematical expression can be used to create computed columns. Even parentheses can be used to group expressions - e.g. (col[0] - col[1]) / col[0].
• To refence a colums use word col followed by brackets with zero base index inside - e.g. col[1] = column 1 (second column).
• Computed column can be used to create new computed columns.
• Multiples computed colums will be computed in order, thous, you can only use column index n-1.
• Current Release Version: 0.4.1.
• Hidden columns are evaluated after computed columns.

Install

From 0.5.x every release includes plugins version (x.y.z) and Kibana version (a.b.c).

From Kibana Installation Path:

./bin/kibana-plugin install https://github.com/seadiaz/computed-columns/releases/download/x.y.z/computed-columns-x.y.z-a.b.c.zip

From Docker Image:

kibana-plugin install https://github.com/seadiaz/computed-columns/releases/download/x.y.z/computed-columns-x.y.z-a.b.c.zip

Roadmap

• Numeric data validation.
• Hidden columns format validation.

development

See the kibana contributing guide for instructions setting up your development environment. Once you have completed that, use the following npm tasks.

• npm start

  Start kibana and have it include this plugin

• npm start -- --config kibana.yml

  You can pass any argument that you would normally send to bin/kibana by putting them after -- when running npm start

• npm run build

  Build a distributable archive

• npm run test:browser

  Run the browser tests in a real web browser

• npm run test:server

  Run the server tests using mocha

For more information about any of these commands run npm run ${task} -- --help.