Timelion Holt-Winters

Elastic Stack Kibana
1

It raises the error: Invalid array length when trying to do a forecast with HW like […].testcast(3, 0.9)

Documentation says:

Use holt-winters to forecast values. Basically useless. I have no idea how this works.

Couldn't be this documentation more detailed? :confused: I can manage to get it working. Thanks in advance.

The complete error looks:

Error: in cell #1: Invalid array length
at throwWithCell (/Users/carlosvega/elastic/kibana/installedPlugins/timelion/handlers/chain_runner.js:28:11)
at /Users/carlosvega/elastic/kibana/installedPlugins/timelion/handlers/chain_runner.js:181:11
at bound (domain.js:287:14)
at runBound (domain.js:300:12)
at tryCatcher (/Users/carlosvega/elastic/kibana/node_modules/bluebird/js/main/util.js:26:23)
at Promise._settlePromiseFromHandler (/Users/carlosvega/elastic/kibana/node_modules/bluebird/js/main/promise.js:503:31)
at Promise._settlePromiseAt (/Users/carlosvega/elastic/kibana/node_modules/bluebird/js/main/promise.js:577:18)
at Promise._settlePromises (/Users/carlosvega/elastic/kibana/node_modules/bluebird/js/main/promise.js:693:14)
at Async._drainQueue (/Users/carlosvega/elastic/kibana/node_modules/bluebird/js/main/async.js:123:16)
at Async._drainQueues (/Users/carlosvega/elastic/kibana/node_modules/bluebird/js/main/async.js:133:10)
at Immediate.Async.drainQueues [as _onImmediate] (/Users/carlosvega/elastic/kibana/node_modules/bluebird/js/main/async.js:15:14)
at processImmediate [as _immediateCallback] (timers.js:383:17)

2

I suggest filing an issue in the timelion issue tracker, but I kind of doubt that this function which is labeled "basically useless" will get much support.

3

I just did it, let's see how is answered.