validate_ds: Validates a data set for use with 'rollup()'

In rollupTree: Perform Recursive Computations

Validates a data set for use with rollup()

Description

validate_ds() ensures that a data set contains the same identifiers as a specified tree and that elements of the data set corresponding to leaf vertices in the tree satisfy a user-specified predicate.

Usage

validate_ds(
  tree,
  ds,
  get_keys,
  get_prop,
  op = function(x) is.numeric(x) & !is.na(x)
)

Arguments

tree	igraph directed graph that is a valid single-rooted in-tree and whose vertex names are keys from the data set
ds	data set to be updated; can be any object
get_keys	function to get keys of the data set called as get_keys(ds)
get_prop	function to get the property value to validate for leaf element with id l, called as get_prop(ds, l)
op	logical function to test return value of get_prop() (default is.numeric()); returns TRUE if OK

Value

TRUE if validation succeeds, halts otherwise

Examples

validate_ds(wbs_tree, wbs_table, function(d) d$id, function(d, l) d[d$id == l, "work"])

rollupTree documentation built on Feb. 10, 2026, 5:09 p.m.