HISTOGRAM Statement: CAPABILITY Procedure
Overview: HISTOGRAM Statement
Histograms are typically used in process capability analysis to compare the distribution of measurements from an in-control process with its specification limits. In addition to creating histograms, you can use the HISTOGRAM statement to do the following:
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specify the midpoints or endpoints for histogram intervals
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display specification limits on histograms
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display density curves for fitted theoretical distributions on histograms
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request goodness-of-fit tests for fitted distributions
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display kernel density estimates on histograms
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inset summary statistics and process capability indices on histograms
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save histogram intervals and parameters of fitted distributions in output data sets
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create hanging histograms
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request graphical enhancements
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create comparative histograms by using the HISTOGRAM statement together with a CLASS statement
You have three alternatives for producing histograms with the HISTOGRAM statement:
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ODS Graphics output is produced if ODS Graphics is enabled, for example by specifying the ODS GRAPHICS ON statement prior to the PROC statement.
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Otherwise, traditional graphics are produced by default if SAS/GRAPH® is licensed.
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Legacy line printer charts are produced when you specify the LINEPRINTER option in the PROC statement.
See Chapter 3: SAS/QC Graphics, for more information about producing these different kinds of graphs.