MarketTiming(dataa,datab,Rf=0.00078222284,method = c("TM"))
错误于R[, nc] - coredata(Rf) : 二进列运算符中有非数值参数
此外: 警告信息：
In FUN(1:2[[1L]], ...) : 不可兼容的方法("Ops.xts", "Ops.data.frame")和"-"
怎么解决啊，完全不懂
dataa为：
                    000021  000031
2007-10-26 -0.0189  -0.0205
2007-11-02 -0.0023  0.0088
2007-11-09 -0.0591 -0.0480
2007-11-16 -0.0062 -0.0072
2007-11-23 -0.0223 -0.0156
2007-11-30 -0.0098 -0.0137
2007-12-07 0.0512   0.0508
2007-12-14 -0.0090 -0.0183
2007-12-21 0.0224   0.0173
2007-12-28 0.0357   0.0230

datab为：
                         MB1
2007-10-26 0.009042787
2007-11-02 -0.019046031
2007-11-09 -0.008382389
2007-11-16 -0.011637116
2007-11-23 0.013966873
2007-11-30 -0.017400641
2007-12-07 0.011366339
2007-12-14 0.015126482
2007-12-21 0.010521393
2007-12-28 -0.004341506