[R] reading data using XTS package

[Upananda Pani]

Dear All,

I want to read the my time series data using XTS package and then to
calculate return using PeformanceAnalytics Package  but i am getting the
following error. Please help me to solve the problem. The error follows:

# Required Libraries
> library(xts)
> library(PerformanceAnalytics)
>
> #Reading Data
> x<-read.csv('crude.csv')
> y<-xts(x[,1:2],as.numeric(x[,2:2]),order.by
=as.Date(x[,1],format='%d-%b-%y'))
> close <- y$close
>
> #Calculating Return
> rspot = Return.calculate(close, method = c ("discrete"))
Error in `/.default`(pr, lag(pr)) :
  non-numeric argument to binary operator


I am not getting where i am committing the mistake.

With sincere regards,
Upananda

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Research Scholar
alternative mail id: upani at iitkgp.ac.in
Department of HSS, IIT KGP
KGP