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A bar chart or bar graph is a chart with rectangular bars with lengths proportional to the values that they represent. The bars can be plotted vertically or horizontally. A vertical bar chart is sometimes called a column bar chart.
Bar charts provide a visual presentation of categorical data. Categorical data is a grouping of data into discrete groups, such as months of the year, age group, shoe sizes, and eye colors. In a column bar chart, the categories appear along the horizontal axis; the height of the bar corresponds to the value of each category.
Bar charts can also be used for more complex comparisons of data with grouped bar charts and stacked bar charts used in 8th Grade Math. In a grouped bar chart, for each categorical group there are two or more bars. These bars are color coded to represent a particular grouping. For example, a business owner with two stores might make a grouped bar chart with different colored bars to represent each store: the horizontal axis would show the months of the year and the vertical axis would show the revenue. Alternatively, a stacked bar chart could be used. The stacked bar chart stacks bars that represent different groups on top of each other. The height of the resulting bar shows the combined result of the groups.
Bar charts provide a visual presentation of categorical data. Categorical data is a grouping of data into discrete groups, such as months of the year, age group, shoe sizes, and eye colors. In a column bar chart, the categories appear along the horizontal axis; the height of the bar corresponds to the value of each category.
Bar charts can also be used for more complex comparisons of data with grouped bar charts and stacked bar charts used in 8th Grade Math. In a grouped bar chart, for each categorical group there are two or more bars. These bars are color coded to represent a particular grouping. For example, a business owner with two stores might make a grouped bar chart with different colored bars to represent each store: the horizontal axis would show the months of the year and the vertical axis would show the revenue. Alternatively, a stacked bar chart could be used. The stacked bar chart stacks bars that represent different groups on top of each other. The height of the resulting bar shows the combined result of the groups.