Class-dependent variable aggregation

Source: R/mean_or_mode.R

Summarize a vector/variable into a single number, either a mean (median) for numeric vectors or the mode for categorical (character, factor, ordered, or logical) vectors. Useful for aggregation.

mean_or_mode(x)

# S3 method for default
mean_or_mode(x)

# S3 method for numeric
mean_or_mode(x)

# S3 method for data.frame
mean_or_mode(x)

median_or_mode(x)

# S3 method for default
median_or_mode(x)

# S3 method for numeric
median_or_mode(x)

# S3 method for data.frame
median_or_mode(x)

Arguments

x

A vector.

Value

A numeric or factor vector of length 1.

See also

prediction, build_datalist, seq_range

Examples

require("datasets")
# mean for numerics
mean_or_mode(iris)
#> $Sepal.Length
#> [1] 5.843333
#> 
#> $Sepal.Width
#> [1] 3.057333
#> 
#> $Petal.Length
#> [1] 3.758
#> 
#> $Petal.Width
#> [1] 1.199333
#> 
#> $Species
#> [1] setosa
#> Levels: setosa versicolor virginica
#> 
mean_or_mode(iris[["Sepal.Length"]])
#> [1] 5.843333
mean_or_mode(iris[["Species"]])
#> [1] setosa
#> Levels: setosa versicolor virginica

# median for numerics
median_or_mode(iris)
#> $Sepal.Length
#> [1] 5.8
#> 
#> $Sepal.Width
#> [1] 3
#> 
#> $Petal.Length
#> [1] 4.35
#> 
#> $Petal.Width
#> [1] 1.3
#> 
#> $Species
#> [1] setosa
#> Levels: setosa versicolor virginica
#>