as_prediction_clust: Convert to a Cluster Prediction

In mlr3cluster: Cluster Extension for 'mlr3'

Convert to a Cluster Prediction

Description

Convert object to a PredictionClust.

Usage

as_prediction_clust(x, ...)

## S3 method for class 'PredictionClust'
as_prediction_clust(x, ...)

## S3 method for class 'data.frame'
as_prediction_clust(x, ...)

Arguments

x	(any) Object to convert.
...	(any) Additional arguments.

Value

PredictionClust.

Examples

# create a prediction object
task = tsk("usarrests")
learner = lrn("clust.cmeans", predict_type = "prob")
learner$train(task)
p = learner$predict(task)

# convert to a data.table
tab = as.data.table(p)

# convert back to a Prediction
as_prediction_clust(tab)

# split data.table into a 3 data.tables based on UrbanPop
f = cut(task$data(rows = tab$row_ids)$UrbanPop, 3)
tabs = split(tab, f)

# convert back to list of predictions
preds = lapply(tabs, as_prediction_clust)

# calculate performance in each group
sapply(preds, function(p) p$score(task = task))

mlr3cluster documentation built on June 11, 2026, 5:06 p.m.