Filters cases using a condition. Only keeps cases if the condition is valid for at least one event.
filter_case_condition(
  log,
  ...,
  condition = NULL,
  reverse = FALSE,
  eventlog = deprecated()
)# S3 method for log
filter_case_condition(
  log,
  ...,
  condition = deprecated(),
  reverse = FALSE,
  eventlog = deprecated()
)
# S3 method for grouped_log
filter_case_condition(
  log,
  ...,
  condition = deprecated(),
  reverse = FALSE,
  eventlog = deprecated()
)
When given an object of type log, it will return a filtered log.
When given an object of type grouped_log, the filter will be applied in a stratified way (i.e. each separately for each group).
The returned log will be grouped on the same variables as the original log.
log: Object of class log or derivatives (grouped_log, eventlog, activitylog, etc.).
data-masking: Expressions that return a logical value, and are defined in terms of the variables in log.
If multiple expressions are included, they are combined with the & operator. Only rows for which all conditions evaluate to TRUE are kept.
For more information, see filter.
logical (default FALSE): Indicating whether the selection should be reversed.
filter_case_condition(log): Filters cases for a log.
filter_case_condition(grouped_log): Filters cases for a grouped_log.
Swennen, M. (2018). Using Event Log Knowledge to Support Operational Exellence Techniques (Doctoral dissertation). Hasselt University.
Other filters: 
filter_activity_frequency(),
filter_activity_instance(),
filter_activity_presence(),
filter_activity(),
filter_case(),
filter_endpoints_condition(),
filter_endpoints(),
filter_flow_time(),
filter_idle_time(),
filter_infrequent_flows(),
filter_lifecycle_presence(),
filter_lifecycle(),
filter_precedence_condition(),
filter_precedence_resource(),
filter_precedence(),
filter_processing_time(),
filter_resource_frequency(),
filter_resource(),
filter_throughput_time(),
filter_time_period(),
filter_trace_frequency(),
filter_trace_length(),
filter_trace(),
filter_trim_lifecycle(),
filter_trim()