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R语言 sdprisk包 varu()函数中文帮助文档(中英文对照)

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发表于 2012-9-29 23:38:32 | 显示全部楼层 |阅读模式
varu(sdprisk)
varu()所属R语言包:sdprisk

                                        Value at Ruin
                                         在毁灭价值

                                         译者:生物统计家园网 机器人LoveR

描述----------Description----------

The value at ruin at a given probability level ε is defined as the minimal capital that is required in order to have a ruin probability of at most ε.  This is equivalent to the (1-ε)-quantile of the maximal aggregate loss.
破产时在给定的概率水平ε的价值被定义为以最ε有破产概率的最低资本需要。这是相当于(1-ε)  - 分位数的最大总亏损。


用法----------Usage----------


varu(process, method = c("saddlepoint", "hypoexp"), ...)
hypoexpVaru(process)
saddlepointVaru(process, type = 2)



参数----------Arguments----------

参数:process
a "riskproc" object.
一个"riskproc"对象。


参数:method
character string indicating the calculation or approximation method.
字符串表示的计算或近似的方法。


参数:type
number indicating the type of approximation; possible choices are 1 and 2.
数,表示近似的类型,可能的选择是1和2。


参数:...
further arguments that are passed on to saddlepointVaru, depending on the value of method.
进一步的论据,并把它传递到saddlepointVaru,根据的价值method。


Details

详细信息----------Details----------

varu is a wrapper function for hypoexpVaru and saddlepointVaru.
varu是一个包装函数hypoexpVaru和saddlepointVaru。

hypoexpVaru calculates the value at ruin in the case of hypo-exponentially distributed claim amounts by numerical inversion of the probability of ruin, which can be computed exactly.
hypoexpVaru计算值,破产的情况下,低服从指数分布的破产概率的数值反演,可以精确计算索赔金额。

saddlepointVaru uses saddlepoint techniques for the approximation of the value at ruin, more specifically, the inversion algorithms provided by <CITE>Wang (1995)</CITE>.  The first one (type = 1) is only given for completeness (or comparison purposes), because, due to repeatedly switching back and forth between the monetary domain the frequency (saddlepoint) domain, it is much slower than the second one (type = 2), which is performed entirely in the frequency domain.  Refer to the references given below for more details.
saddlepointVaru使用鞍点技术,破产为近似的值,更具体地,提供由<CITE>王(1995年)的反演算法</ CITE>。第一个(type = 1)仅给出的完整性(或比较的目的),因为,由于反复来回切换之间的货币域的频率(鞍点)结构域,它是比第二个(慢得多type = 2),这是完全在频域中执行。请参阅有关详细信息,下面给出的参考文献。


值----------Value----------

A function returning the value at ruin of a given probability level is returned.
返回返回值的函数,在一个给定的概率水平破产。

If method = "saddlepoint" or if saddlepointVaru is used, the returned function has an additional second argument giving the number of iterations.
如果method = "saddlepoint"或如果saddlepointVaru使用,返回的函数有一个额外的第二个参数给出的迭代次数。


参考文献----------References----------

Computational Statistics and Data Analysis 20(1), pp. 65&ndash;74.
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。


注:
注1:为了方便大家学习,本文档为生物统计家园网机器人LoveR翻译而成,仅供个人R语言学习参考使用,生物统计家园保留版权。
注2:由于是机器人自动翻译,难免有不准确之处,使用时仔细对照中、英文内容进行反复理解,可以帮助R语言的学习。
注3:如遇到不准确之处,请在本贴的后面进行回帖,我们会逐渐进行修订。
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