| 摘要 |
A method and model for modeling a characteristic C that is distributed within a domain. A provided base equation expresses C as a function f of a variable V through use of N+1 parameters C0, C1, . . . , CN in the form C=f(C0, C1, . . . , CN, V), wherein N>=1, and wherein C0, C1, . . . , CN are subject to uncertainty. A probability density function (PDF) is provided for describing the probability of occurrence of C0 in accordance with the uncertainty. Subsidiary equations expressing C1, . . . , CN in terms of C0 are provided. A value of C may be sampled by: providing a value V' of V; picking a random value C0R of C0 from the PDF; computing values C1R, . . . , CNR of C1, . . . , CN, respectively, by substituting C0R into the subsidiary equations; and calculating C by substituting C0R, C1R, . . . , CNR and V' into the base equation.
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