fSeries Technical Analysis rsiTA problem

fSeries Technical Analysis rsiTA problem

Hello,

I?m trying to use the rsiTA() function but keep getting this error:

rsiTA(tsx,14)

Error in "[.timeSeries"(close, 1:(length(close) - 1)) :
        only 0's may be mixed with negative subscripts

Here?s is the first three lines of my data:

tsx[1:3,]

close
2004-04-18 20:00:00 8702.82
2004-04-19 20:00:00 8602.98
2004-04-20 20:00:00 8573.05

I have 250 days of data.

Here?s the class

class(tsx)

[1] "timeSeries"
attr(,"package")
[1] "fBasics"

And here?s my version:

version

_
platform i386-pc-mingw32
arch     i386
os       mingw32
system   i386, mingw32
status
major    2
minor    1.0
year     2005
month    04
day      18
language R

I did load the libraries
library(fSeries)
library(fBasics)

Regards,