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).

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.

tonykoval / computed-columns