how_many.data.frame: This is the S3 method for class 'data.frame'

In jdtrat/jdtools: Helpful Tools and Code for Programming in R

Description

This is the S3 method for class 'data.frame'

Usage

## S3 method for class 'data.frame'
how_many(x, column, ...)

Arguments

x	Object of class 'data.frame'
column	The column of the data frame to be indexed into.
...	Additional arguments passed to or from other methods.

Value

An integer indicating how many unique observations are in the object.

Examples

how_many(mtcars, "cyl") # Subset dataframe with a character string for column name
how_many(mtcars, cyl) # Subset dataframe without needing to quote the column name

jdtrat/jdtools documentation built on Dec. 20, 2021, 10:05 p.m.