Dear Sir, I’am a frensh student and i’am a new user of the R software. After using the command (x<-read.delim(“clipboard”) to read a spreadsheet of Excel, I want to run the bds test and calculate the Lyapunov exponent. I have charged the R software by the packages tseries and tseriesChaos. when i run bds.test(x,m=2) Unfortunately the R software displays “error in as.vector(x,mode= “double”) : the object (list) can not be automatically converted on double” so what shall I do to run this two tests(lyapunov and bds)? And what is my mistake? I thank you in advance and I’am waiting forward your e-mail This si my e-mail: karimmgo@laposte.net Accédez au courrier électronique de La Poste : www.laposte.net ; 3615 LAPOSTENET (0,34 €/mn) ; tél : 08 92 68 13 50 (0,34€/mn) [[alternative HTML version deleted]]
karim99.karim wrote:> Dear Sir, > > I?am a frensh student and i?am a new user of the R software. > > After using the command (x<-read.delim(?clipboard?) to read a spreadsheet of Excel, I want to run the bds test and calculate the Lyapunov exponent. I have charged the R software by the packages tseries and tseriesChaos. when i run bds.test(x,m=2) Unfortunately the R software displays ?error in as.vector(x,mode= ?double?) : the object (list) can not be automatically converted on double? so what shall I do to run this two tests(lyapunov and bds)? And what is my mistake? > > I thank you in advance and I?am waiting forward your e-mail > > This si my e-mail: karimmgo at laposte.net > > Acc?dez au courrier ?lectronique de La Poste : www.laposte.net ; > 3615 LAPOSTENET (0,34 ?/mn) ; t?l : 08 92 68 13 50 (0,34?/mn) > > > > [[alternative HTML version deleted]] > > > > ------------------------------------------------------------------------ > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.htmlseems that the data import failed. probably the exported excel data are not in a format accepted correctly by read.delim. check this. alternative (maybe): there is an additional package 'gdata' on CRAN which you can download and install. it contains a function read.xls which can read directly the excel binary format (with some limitations).
x is a data frame, since that is what read.table reads.
bds.test is expecting (from the help file)
x: a numeric vector or time series.
so you probably want to pass x[[1]].
On Thu, 18 May 2006, karim99.karim wrote:
> Dear Sir,
>
> I?am a frensh student and i?am a new user of the R software.
>
> After using the command (x<-read.delim(?clipboard?) to read a
> spreadsheet of Excel, I want to run the bds test and calculate the
> Lyapunov exponent. I have charged the R software by the packages tseries
> and tseriesChaos. when i run bds.test(x,m=2) Unfortunately the R
> software displays ?error in as.vector(x,mode= ?double?) : the object
> (list) can not be automatically converted on double? so what shall I do
> to run this two tests(lyapunov and bds)? And what is my mistake?
>
> I thank you in advance and I?am waiting forward your e-mail
>
> This si my e-mail: karimmgo at laposte.net
>
> Acc?dez au courrier ?lectronique de La Poste : www.laposte.net ;
> 3615 LAPOSTENET (0,34 ?/mn) ; t?l : 08 92 68 13 50 (0,34?/mn)
>
>
>
> [[alternative HTML version deleted]]
>
>
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595