Count Unique Values and Filter Columns

Counts unique values in each column of a data frame and retains columns exceeding a specified threshold.

Usage

count_unique_values(df, threshold)

Arguments

df

A data frame.

threshold

An integer specifying the minimum number of unique values to retain a column.

Value

A data frame with filtered columns.

Examples

df <- data.frame(a = c(1, 1, 2), b = c("x", "y", "z"))
count_unique_values(df, 1)
#> a : 2 unique values
#> b : 3 unique values
#>   a b
#> 1 1 x
#> 2 1 y
#> 3 2 z