Re: [R] aggregate() - error message

344 620811 From: Jorge Ivan Velez Cc: R mailing list Sent: Thursday, 24 September, 2009 13:32:59 Subject: Re: [R] aggregate() - error message Hi Julien, Works for me: # Data sets TripsData1 <- read.table(textConnection("Trip Distance TimeDiff Tr

Re: [R] aggregate() - error message

> 01344 620811 > > > > - Original Message ---- > From: Paul Emberson > To: Juliane Struve > Cc: r-help@r-project.org > Sent: Thursday, 24 September, 2009 12:27:00 > Subject: Re: [R] aggregate() - error message > > Hi, > > Are you trying to get columns

Re: [R] aggregate() - error message

thanks, Juliane  Dr. Juliane Struve Environmental Scientist 10, Lynwood Crescent Sunningdale SL5 0BL 01344 620811 - Original Message From: Paul Emberson To: Juliane Struve Cc: r-help@r-project.org Sent: Thursday, 24 September, 2009 12:27:00 Subject: Re: [R] aggregate() - error message

Re: [R] aggregate() - error message

Hi Juliane, Try TripsData[, 2:3] instead of TripsData[ 2:3 ] in the aggregate call. HTH, Jorge On Thu, Sep 24, 2009 at 6:52 AM, Juliane Struve <> wrote: > Dear list, > > would anybody be able to tell me why the statement > > Tripstatistics=aggregate(TripsData[2:3],by=list(Trip=Tripmatch),FUN="m

Re: [R] aggregate() - error message

Hi, Are you trying to get columns 2 and 3 from TripsData in which case you need to say TripsData[,2:3] ? Paul Juliane Struve wrote: Dear list, would anybody be able to tell me why the statement Tripstatistics=aggregate(TripsData[2:3],by=list(Trip=Tripmatch),FUN="mean") seems to work w

[R] aggregate() - error message

Dear list,   would anybody be able to tell me why the statement   Tripstatistics=aggregate(TripsData[2:3],by=list(Trip=Tripmatch),FUN="mean")   seems to work well with TripsData 1 but not with TripsData 2 ?   With TripsData 2 it yields   Error in FUN(X[[1L]], ...) : arguments must have same lengt