filter_resource_frequency: Filter: Activity frequency

In gertjanssenswillen/edeaR: Exploratory and Descriptive Event-Based Data Analysis

Description

Filters the log based on frequency of activities

Filtering the event log based in resource frequency can be done in two ways: using an interval of allowed frequencies, or specify a coverage percentage.

• percentage: When filtering using a percentage p%, the filter will return p frequency. The filter will retain additional resource labels as long as the number of activity instances does not exceed the percentage threshold.

• interval: When filtering using an interval, resource labels will be retained when their absolute frequency fall in this interval. The interval is specified using a numeric vector of length 2. Half open intervals can be created by using NA. E.g., 'c(10, NA)' will select resource labels which occur 10 times or more.

Usage

filter_resource_frequency(eventlog, interval, percentage, reverse, ...)

## S3 method for class 'eventlog'
filter_resource_frequency(eventlog, interval = NULL,
  percentage = NULL, reverse = FALSE, ...)

## S3 method for class 'grouped_eventlog'
filter_resource_frequency(eventlog,
  interval = NULL, percentage = NULL, reverse = FALSE, ...)

ifilter_resource_frequency(eventlog)

Arguments

eventlog	The dataset to be used. Should be a (grouped) eventlog object.
interval	An resource frequency interval (numeric vector of length 2). Half open interval can be created using NA.
percentage	The target coverage of activity instances. A percentile of 0.9 will return the most common resource types of the eventlog, which account for at least 90% of the activity instances.
reverse	Logical, indicating whether the selection should be reversed.
...	Deprecated arguments.

Value

When given an eventlog, it will return a filtered eventlog. When given a grouped eventlog, the filter will be applied in a stratified way (i.e. each separately for each group). The returned eventlog will be grouped on the same variables as the original event log.

Methods (by class)

• eventlog: Filter event log

• grouped_eventlog: Filter grouped event logs

See Also

vignette("filters", "edeaR")

gertjanssenswillen/edeaR documentation built on July 22, 2019, 7:08 p.m.