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| The Histogram filter produces output indicating the number of occurrences of each value from a
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| chosen data array. It takes in a vtkDataObject but the object must have either point or cell data
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| to operate on. The filter cannot be directly used with a table but the Table to Points filter
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| can be used to convert the table to a polydata for input into the Histogram filter.
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| The bar chart is the default view for the output of the Histogram filter. Other views that can be used are the line chart view,
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| parallel coordinate view, and spreadsheet view. The chart views are useful for observing trends in the data
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| while the spreadsheet view is useful for seeing exact numbers. An example Histogram filter output
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| in a bar chart view is shown in Figure 6.17.
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| [[Image:ParaViewUsersGuideBarChartView.png|thumb|center|600px|'''Figure 6.17''' Histogram filter output in bar chart view]]
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| Options for the Histogram filter are:
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| * Which array to process. This can be either a point data array or a cell data array. For arrays with more than one component, the user can specify which component to compute with respect to. The default is the first component.
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| * The number of bins to put the results in as well as the range the bins should be divided from.
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| * An option to average other field information of the same type for each of the bins.
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| * Which variables are to be displayed in the view. This is under the Display section on the Properties panel.
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