Select panel organizations by membership type

Keeps the rows of organizations whose panel classification matches the given criteria. The classification is computed from data automatically unless a precomputed one is supplied.

Usage

panel_filter(x, ...)

# S3 method for class 'data.frame'
panel_filter(
  x,
  panel_type = NULL,
  spell = NULL,
  min_obs = NULL,
  classification = NULL,
  time = "TAX_YEAR",
  id = "EIN2",
  ...
)

# S3 method for class 'panel'
panel_filter(
  x,
  panel_type = NULL,
  spell = NULL,
  min_obs = NULL,
  assume_fresh = FALSE,
  ...
)

Arguments

x

A panel data frame or a panel.

...

Passed to methods.

panel_type

Panel types to keep (persistent, entrant, exit, transient, empty). NULL keeps all types.

spell

Spell continuity values to keep (seamless, segmented). NULL keeps all.

min_obs

Minimum number of observed years per organization. NULL applies no minimum.

classification

Optional precomputed classification (from panel_describe()); computed from x when NULL.

time

Name of the panel-time column.

id

Name of the panel-ID column.

assume_fresh

For a panel, skip the label-freshness check. Default FALSE.

Value

For a data frame, the selected rows; for a panel, the panel.

Details

Given a panel, the labels are refreshed first if they are stale (unless assume_fresh = TRUE), the selection is recorded as a rule, the step is logged, and the panel is returned.

See also

panel_describe(), panel_label().