Statistics by group

This function computes a summary statistic by group for a given vector of data.

Usage

stats_by_group(data_vector, group_vector, stat = mean)

Arguments

data_vector

A numeric vector of data.

group_vector

A factor vector indicating the group membership for each observation in data_vector.

@param stat A statistic function to compute separately for each group.

Examples

# Generate some fictional data
set.seed(100)
data_vector <- rnorm(100)
group_vector <- as.factor(sample(c("A", "B", "C"), size = 100, replace = TRUE))
# Compute the mean of data_vector for each group in group_vector
stats_by_group(data_vector, group_vector, stat = mean)
#>           A           B           C 
#> -0.12992515  0.07199512  0.02461430