aggregation: Aggregation by groups

In daltoolbox: Leveraging Experiment Lines to Data Analytics

Aggregation by groups

Description

Aggregate data by a grouping attribute using named expressions.

Usage

aggregation(group, ...)

Arguments

group	grouping column name (string)
...	named expressions evaluated per group

Value

returns an object of class aggregation

Examples

data(iris)
agg <- aggregation(
 "Species",
 mean_sepal = mean(Sepal.Length),
 sd_sepal = sd(Sepal.Length),
 n = n()
)
iris_agg <- transform(agg, iris)
iris_agg

daltoolbox documentation built on Feb. 10, 2026, 9:06 a.m.