callback_int: Internal item callback utilities

In septic-tank/ricu: Intensive Care Unit Data with R

Description

The utility function add_weight() is exported for convenience when adding external datasets and integrating concepts such as vasopressor rates which rely on patient weight. For this to function, the newly added dataset must offer a weight concept. For performance reasons, the weight concept is internally cached, as this might be used unchanged many times, when loading several concepts that need to pull in patient weight data.

Usage

add_weight(x, env, weight_var = "weight")

calc_dur(x, val_var, min_var, max_var, grp_var = NULL)

Arguments

x	Object in loading
env	Data source environment as available as env in callback functions
weight_var	String valued name of the newly added weight column
val_var	String valued column name corresponding to the value variable
min_var, max_var	Column names denoting start and end times
grp_var	Optional grouping variable (for example linking infusions)

Value

An id_tbl or ts_tbl object, potentially modified by reference.

septic-tank/ricu documentation built on Jan. 30, 2021, 8:40 p.m.