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A note on a gamma distribution computer program and computer produced graphs
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1977
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Series: NOAA technical report EDS ; 24
[PDF-214.15 MB]
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Description:The gamma distribution function may be used as a model for many sets of data. The electronic computer program for this function in the Formula Translator (FORTRAN) IV (1) provides the analytic solution to a set of data, (2) gives the probabilities of exceeding or not exceeding arbitrary amounts, (3) indicates the amounts exceeded or not exceeded for arbitrary probabilities, and (4) provides for computer output to microfilm, drum, or flatbed plotters.
The program, in its general form, permits a maximum of 52 entries which will suffice for those dealing with weekly data through the year. In addition, such as in weekly precipitation studies, the user has the option to compute the two- and three-week duration period distributions in one pass of the data. These computations are done without program change but by appropriate changes in the control cards. This feature is not limited to the study of precipitation data nor to the time intervals used.
An option permits the computation of the required probabilities and inverses when only the scale and shape parameters are given. By appropriate modification, where only one set of data is being examined, the program can accept a string of input data longer than 52.
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Rights Information:Public domain
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