count_rows: Counting join rows

In associatedpress/apdatacheck: AP Data Check Scripts

Description

A concern in a join, particularly the left join, is that the right-hand frame has duplicate rows. This function checks for this by making sure the resulting dataframe has the same number of rows as the left input dataframe.

Usage

count_rows(left, right, by = NULL, join_type)

Arguments

left	dataframe that we want to merge on the left side of the join
right	dataframe that we want to merge on the right side of the join
by	headers of columns to use to join the left and right data frames
join_type	type of join ('left', right', 'inner', etc.) user is checking

associatedpress/apdatacheck documentation built on Feb. 17, 2020, 9:27 p.m.