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As known as Bar Graph or Column Graph.
The classic Bar Chart uses either horizontal or vertical bars (column chart) to show discrete, numerical comparisons across categories. One axis of the chart shows the specific categories being compared and the other axis represents a discrete value scale.
Bars Charts are distinguished from Histograms, as they do not display continuous developments over an interval. Bar Chart's discrete data is categorical data and therefore answers the question of "how many?" In each category.
One major flaw with bar charts is labeling becomes problematic when there is a large number of bars.
Tools to Generate Visualisation