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尝试从“RQuantLib”包中运行以下示例代码...

require(RQuantLib)

HullWhite <- list(term = 0.055, alpha = 0.03, sigma = 0.01,
                  gridIntervals = 40)

Price <- rep(as.double(100),24)
Type <- rep(as.character("C"), 24)
Date <- seq(as.Date("2006-09-15"), by = '3 months', length = 24)
callSch <- data.frame(Price, Type, Date)
callSch$Type <- as.character(callSch$Type)

bondparams <- list(faceAmount=100, issueDate = as.Date("2004-09-16"),
                   maturityDate=as.Date("2012-09-16"), redemption=100,
                   callSch = callSch)
dateparams <- list(settlementDays=3, calendar="us",
                   dayCounter = "ActualActual",
                   period="Quarterly",
                   businessDayConvention = "Unadjusted",
                   terminationDateConvention= "Unadjusted")
coupon <- c(0.0465)

CallableBond(bondparams, HullWhite, coupon, dateparams)

...我收到以下错误：

SET_VECTOR_ELT() can only be applied to a 'list', not a 'symbol'

通过互联网徘徊，我发现了与我的问题类似的问题，已通过更新软件包解决。我尝试了相同但没有结果；我也在三台不同的电脑上试过:(

两周前，相同的代码可以正常工作。知道在此期间发生了什么变化吗？

谢谢 ：）

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