Proportion of a data set with a given variable at a given level

Proportion of a data set with a given variable at a given level

Usage

prop_level(df, var, level)

Arguments

df

Data frame.

var

Character, column name in df.

level

Value to match against df[[var]].

Value

Numeric, proportion of rows where df[[var]] == level (na.rm=TRUE).

Examples

df <- data.frame(colour = sample(c("orange", "purple"), 100, replace = TRUE))
prop_level(df, "colour", "purple")
#> [1] 0.45