
Thank you, it works now
 
I'm sorry, I have worked all year with R but with simulated data (except one time actually)> Subject: RE: [R] Import from excel> Date: Wed, 27 Jun 2007 10:01:51 -0400> From: tkt2@cdc.gov> To: croero@hotmail.com> > cours is a dataframe not a matrix. Try:> > cours[2,]*cours[5,]> > -----Original Message-----> From: r-help-bounces@stat.math.ethz.ch [mailto:r-help-bounces@stat.math.ethz.ch] On Behalf Of Bruce Willy> Sent: Wednesday, June 27, 2007 9:44 AM> To: Chuck Cleland> Cc: r-help@stat.math.ethz.ch> Subject: Re: [R] Import from excel> > > Thank you, but it still doesn't work completely> > Thanks to you and the "dec=","" option, I can now do cours[5,5]*5 and get the exact value> > But I still cannot do matrix operations like cours[2,]%*%cours[5,]> > It says the arguments are neither matrix nor vectors.> > :(> Date: Wed, 27 Jun 2007 09:30:32 -0400> From: ccleland@optonline.net> Subject: Re: [R] Import from excel> To: croero@hotmail.com> CC: r-help@stat.math.ethz.ch> > Bruce Willy wrote:> > Hello,> > > > I have imported data from Excel using the command > > cours=read.delim("w:/apprentissage/cours_2.txt")> > after transforming my initial file with tab delimiters> > > > It seemed to work> > > > It is 2-dimensionnal. When I type cours[5,5],> > I get this type of message : "[1] 0,9760942761824 Levels: 0,495628477 0,893728761 0,89640592 0,903398558 ... 3,864414217"> > And when I want to multiply it, for example by 2 (cours[5,5]*2), I get : "Warning message:* ceci n'est pas pertinent pour des variables facteurs in: Ops.factor(cours[5, 5], 2)"> > i.e. approximately "this is not relevant for factor variables.> > > > What can I do if I want to manipulate my variables ?> > > > Thank you very much > > You might try the following:> > cours <- read.delim("w:/apprentissage/cours_2.txt", dec=",")> > See the "dec" argument on the help page for read.delim().> > > _________________________________________________________________> > > > stallées directement dans votre Messenger !> > > > [[alternative HTML version deleted]]> > > > > > > > ------------------------------------------------------------------------> > > > ______________________________________________> > R-help@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.html> > and provide commented, minimal, self-contained, reproducible code.> > -- > Chuck Cleland, Ph.D.> NDRI, Inc.> 71 West 23rd Street, 8th floor> New York, NY 10010> tel: (212) 845-4495 (Tu, Th)> tel: (732) 512-0171 (M, W, F)> fax: (917) 438-0894 _________________________________________________________________> > stallées directement dans votre Messenger !> > [[alternative HTML version deleted]]> > > 
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