RenewalProcess[rdist]
表示一个更新过程,其中时间间隔服从 rdist 分布.
RenewalProcess
RenewalProcess[rdist]
表示一个更新过程,其中时间间隔服从 rdist 分布.
更多信息
- RenewalProcess 是一个连续或者离散时间和离散状态过程.
- RenewalProcess 是一个取决于 rdist 的离散状态和连续时间或者离散时间过程.
- 状态
是 0 到
的区间内并且
的事件数目. - 分布 rdist 可以是在正数域下是任意连续或者离散分布.
- RenewalProcess 可以与诸如 Mean、PDF、Probability 和 RandomFunction 等函数一起使用.
范例
打开所有单元 关闭所有单元基本范例 (2)
范围 (6)
连续到达间隔分布 (2)
proc[k_, λ_] := RenewalProcess[ErlangDistribution[k, λ]];DiscretePlot[#[proc[3, 4][12], x], {x, 0, 30}, PlotRange -> All, ExtentSize -> 1 / 2, PlotLabel -> #]& /@ {PDF, CDF, HazardFunction, SurvivalFunction}Probability[x[27] < 5, xproc[2, 1 / 3]]ListPlot[Table[RandomFunction[proc[2, λ], {200}], {λ, #}], PlotLegends -> (StringJoin["λ = ", ToString[#]]& /@ #)]&@{.2, .5, .7}proc[α_, β_] = RenewalProcess[GammaDistribution[α, β]];DiscretePlot[#[proc[.7, 2][12], x], {x, 0, 30}, PlotRange -> All, ExtentSize -> 1 / 2, PlotLabel -> #]& /@ {PDF, CDF, HazardFunction, SurvivalFunction}Probability[12 < x[12] ^ 3 + 12x[12] < 120, xproc[.7, 2]]NProbability[12 < x[12] ^ 3 + 12x[12] < 120, xproc[.7, 2]]ListPlot[Table[RandomFunction[proc[.7, β], {200}], {β, #}], PlotLegends -> (StringJoin["β = ", ToString[#]]& /@ #)]&@{.5, 1, 2}离散到达间隔分布 (2)
proc[p_] := RenewalProcess[PascalDistribution[3, p]]DiscretePlot[#[proc[.4][70], x], {x, 0, 15}, PlotRange -> All, ExtentSize -> 1 / 2, PlotLabel -> #]& /@ {PDF, CDF, HazardFunction, SurvivalFunction}Probability[x[20] < 5, xproc[.7]]ListPlot[Table[RandomFunction[proc[p], {300}], {p, #}], PlotLegends -> (StringJoin["p = ", ToString[#]]& /@ #)]&@{.2, .5, .7}更新过程,其中到达间隔时间服从 Borel–Tanner 分布:
proc[p_] := RenewalProcess[BorelTannerDistribution[p, 2]]DiscretePlot[#[proc[.4][70], x], {x, 0, 30}, PlotRange -> All, ExtentSize -> 1 / 2, PlotLabel -> #]& /@ {PDF, CDF, HazardFunction, SurvivalFunction}Probability[x[100] < 5, xproc[.7]]ListPlot[Table[RandomFunction[proc[p], {1, 300}], {p, #}], PlotLegends -> (StringJoin["p = ", ToString[#]]& /@ #)]&@{.2, .5, .7}参数估计 (2)
sample = RandomFunction[RenewalProcess[BetaDistribution[1, 3]], {10 ^ 3}];EstimatedProcess[sample, RenewalProcess[BetaDistribution[a, b]]]ListLinePlot@Table[Mean[RenewalProcess[WeibullDistribution[1, .7]][t]], {t, 0.5, 8, .5}]ListLinePlot@Table[Mean[RenewalProcess[GammaDistribution[1, 4]][t]], {t, 0.5, 8, .5}]应用 (1)
消息到达通讯线路服从双相位超指数分布,其中相位概率分别为 0.4 和 0.6. 两个相位的平均到达时间分别是4.8毫秒和0.8毫秒. 模拟100毫秒内的过程:
communicationLine = RenewalProcess[HyperexponentialDistribution[{0.4, 0.6}, {1 / 4.8, 1 / 0.8}]];ListStepPlot[RandomFunction[communicationLine, {0, 100}], Filling -> Axis]Mean[communicationLine[10]]Mean[RandomVariate[communicationLine[10], 10 ^ 4]]//N属性和关系 (2)
RenewalProcess 是一个跳跃过程:
path = RandomFunction[RenewalProcess[WeibullDistribution[2, .7]], {10}];
f = path["PathFunction"];
jumps = path["Times"];Plot[f[t], {t, 0, 10}, Exclusions -> jumps, ExclusionsStyle -> Red]RenewalProcess 对于任意分布都不是弱平稳的:
WeakStationarity[RenewalProcess[GammaDistribution[a, b]]]WeakStationarity[RenewalProcess[PascalDistribution[n, p]]]文本
Wolfram Research (2012),RenewalProcess,Wolfram 语言函数,https://reference.wolfram.com/language/ref/RenewalProcess.html.
CMS
Wolfram 语言. 2012. "RenewalProcess." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/RenewalProcess.html.
APA
Wolfram 语言. (2012). RenewalProcess. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/RenewalProcess.html 年
BibTeX
@misc{reference.wolfram_2026_renewalprocess, author="Wolfram Research", title="{RenewalProcess}", year="2012", howpublished="\url{https://reference.wolfram.com/language/ref/RenewalProcess.html}", note=[Accessed: 17-June-2026]}
BibLaTeX
@online{reference.wolfram_2026_renewalprocess, organization={Wolfram Research}, title={RenewalProcess}, year={2012}, url={https://reference.wolfram.com/language/ref/RenewalProcess.html}, note=[Accessed: 17-June-2026]}