What is a bar graph?

A bar chart or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or 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 chart . A bar graph shows comparisons among discrete categories.

When do you use bar charts?

Use bar charts to compare categories when you have at least one categorical or discrete variable. Each bar represents a summary value for one discrete level, where longer bars indicate higher values. Types of summary values include counts, sums, means, and standard deviations. Bar charts are also known as bar graphs.

What is the difference between Stacked bar charts and grouped bar charts?

Grouped bar charts usually present the information in the same order in each grouping. Stacked bar charts present the information in the same sequence on each bar. Variable-width bar charts, sometimes abbreviated variwide (bar) charts, are bar charts having bars with non-uniform widths.

What color is a bar chart?

Bar charts can be colored coded where if the close is above the open it may be colored black or green, and if the close is below the open the bar may be colored red. A bar chart is a collection of price bars, with each bar showing price movements for a given period.