prob (version 0.9-1)

empirical: Empirical Summary of a Simulation

Description

Calculates relative frequencies of the rows of a data frame.

Usage

empirical(x)

Arguments

x

a data frame.

Value

• A data frame formed by aggregating the rows of x. A probs column is added giving the relative frequencies of each of the rows.

Details

The function works by adding a probs column to x with equally likely entries of $1/n$, where $n$ is the number of rows. Then it aggregates the duplicated rows of x while accumulating the probabilities associated with each.

See Also

sim

Examples

S <- tosscoin(2, makespace = TRUE)
sims <- sim(S, ntrials = 50000)
empirical(sims)