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## Histogram## DescriptionA Histogram visualises the distribution of data over a continuous interval or certain time period. Each bar in a histogram represents the tabulated frequency at each interval/bin. The total area of the histogram is equal to the number of data. Histograms help give an estimate as to where values are concentrated, what the extremes are and whether there are any gaps or unusual values. They are also useful for giving a rough view of probability distribution. ## FunctionsComparisons
Data over Time
Distribution
Patterns
Probability
Range
## Anatomy## Tools to Generate VisualisationMS Excel and Apple Numbers D3 (code) Datavisual Google Docs Infogr.am OnlineChartTool.com Protovis (code) R Graph Gallery (code) Slemma |