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When you use the Custom Distribution, we highly recommend that you use data from your spreadsheet to construct your Custom Distribution as is explained here. Depending on which version of Crystal Ball you use, you have to format your data in a certain way ("date entry rules"). For detailed instructions on how to format your data to construct the following six distributions with Crystal Ball, please click on the appropriate links below.



Name used in Crystal Ball manual

Construction with Crystal Ball:

Discrete Uniform distribution

"Unweighted values"

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Discrete distribution

"Weighted values"

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General distribution

"Sloping continuous ranges"

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Histogram distribution

"Continuous ranges"

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Cumulative Ascending distribution

"Sloping continuous cumulative ranges"

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Combination of distributions


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