2.12:

Bar Graph

JoVE 핵심
통계학
JoVE 비디오를 활용하시려면 도서관을 통한 기관 구독이 필요합니다.  전체 비디오를 보시려면 로그인하거나 무료 트라이얼을 시작하세요.
JoVE 핵심 통계학
Bar Graph

13,079 Views

01:07 min

April 30, 2023

A bar graph is also called a bar chart and consists of bars that are separated from each other. It either uses horizontal or vertical bars to show comparisons among categories. The bars can be rectangles, or they can be rectangular boxes (used in three-dimensional plots). One axis of the graph represents the specific categories being compared, and the other axis shows a discrete value. In this graph, the length of the bar for each category is proportional to the number or percent of individuals in each category. Some bar charts show bars clustered in groups of more than one (grouped bar graphs), and others depict the bars divided into subparts to show cumulative effect (stacked bar graphs). A bar graph is a better choice than a line graph or histogram because this data is categorical rather than continuous. Also, it is appropriate to compare the relative size of the categories. It is to be noted that the bar graphs that are organized from highest to lowest are called Pareto charts.