Filters the log based on frequency of activities.
filter_activity_frequency(eventlog, interval, percentage, reverse, ...)# S3 method for eventlog
filter_activity_frequency(
eventlog,
interval = NULL,
percentage = NULL,
reverse = FALSE,
...
)
# S3 method for grouped_eventlog
filter_activity_frequency(
eventlog,
interval = NULL,
percentage = NULL,
reverse = FALSE,
...
)
ifilter_activity_frequency(eventlog)
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.
The dataset to be used. Should be a (grouped) eventlog object.
An activity frequency interval (numeric vector of length 2). Half open interval can be created using NA.
The target coverage of activity instances. A percentile of 0.9 will return the most common activity types of the eventlog, which account for at least 90% of the activity instances.
Logical, indicating whether the selection should be reversed.
Deprecated arguments.
eventlog: Filter eventlog on activity frequency
grouped_eventlog: Stratified filter for grouped eventlog
Filtering the event log based in activity 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 activity labels as long as the number of activity instances does not exceed the percentage threshold.
interval: When filtering using an interval, activity 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 activity labels which occur 10 times or more.
vignette("filters", "edeaR")