Create a standard deviation feature specification — omop.feature.sd

Produces a feature spec that computes the standard deviation of a numeric column per person. Requires at least 2 values per person; returns NA otherwise.

Usage

omop.feature.sd_value(
  concept_set,
  value_column = "value_as_number",
  name = NULL
)

Arguments

concept_set: Numeric vector of concept IDs.
value_column: Character; numeric column (default "value_as_number").
name: Character; optional custom column name.

Value

An omop_feature_spec with type = "sd_value".