buildEnsemble: Build Ensemble
In exprso: Rapid Deployment of Machine Learning Algorithms

Description Usage Arguments Details Value Methods (by class)

buildEnsemble builds an ensemble from ExprsModel or ExprsPipeline objects. See Details.

buildEnsemble(object, ...)

## S4 method for signature 'ExprsModel'
buildEnsemble(object, ...)

## S4 method for signature 'ExprsPipeline'
buildEnsemble(object, colBy = 0, how = 0,
  gate = 0, top = 0)

`object`	An `ExprsPipeline-class` object.
`...`	Additional `ExprsModel` objects to use in the ensemble. Argument applies to the `ExprsModel-class` method only.
`colBy`	A character vector or string. Specifies column(s) to use when filtering by model performance. Listing multiple columns will result in a filter based on the product all listed columns.
`how`	A numeric scalar. Arguments between 0 and 1 will impose a threshold or ceiling filter, respectively, based on the raw value of `colBy`. Arguments between 1 and 100 will impose a filter based on the percentile of `colBy`. The user may also provide "midrange", "median", or "mean" as an argument for these filters.
`gate`	A numeric scalar. Arguments between 0 and 1 will impose a threshold or ceiling filter, respectively, based on the raw value of `colBy`. Arguments between 1 and 100 will impose a filter based on the percentile of `colBy`. The user may also provide "midrange", "median", or "mean" as an argument for these filters.
`top`	A numeric scalar. Determines the top N models based on `colBy` to include after the threshold and ceiling filters. In the case that the `@summary` slot contains the column "boot", this selects the top N models for each unique bootstrap.

This function can combine any number of model objects into an ensemble. These models do not necessarily have to derive from the same build method. In this way, it works like conjoin.

This function can also build an ensemble from pipeline objects. It does this by calling pipeFilter, then joining the remaining models into an ensemble. As an adjunct to this method, consider first combining multiple pipeline objects with conjoin.

An ExprsEnsemble-class object.