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histogram |
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histogramIn statistics, a graph showing frequency of data, in which the horizontal axis details discrete units or class boundaries, and the vertical axis represents the frequency. Blocks are drawn such that their areas (rather than their height as in a bar chart) are proportional to the frequencies within a class or across several class boundaries. There are no spaces between blocks. If all the columns have the same width, then the element that appears most frequently (the mode) is represented by the tallest column. If the columns are of different widths the areas must be compared. Total frequency can be calculated by adding together the areas of all the columns. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The third section explores everything from shooting and metering to using histograms, while the last addresses digital editing and correction techniques. SPC, histograms and workstation audits are implemented and managed throughout the production process to assure quality. It provides real-time gage values; pass/fail data on critical part dimensions; statistical process control (SPC) charts and histograms, and audible cues for out-of-tolerance situations. |
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