Yes, or tapply(x$val, x$label, summary)[[1]]
for the first class. On 25/10/2007, Bernd Jagla <[EMAIL PROTECTED]> wrote: > > Wow, that easy... > And how can get only the values for a specific class? > > Like tapply(x$val, x$label, ?echo?)$class1 > > What should echo be? > > Thanks, > B > > |-----Original Message----- > |From: Henrique Dallazuanna [mailto:[EMAIL PROTECTED] > |Sent: Thursday, October 25, 2007 1:15 PM > |To: Bernd Jagla > |Cc: r-help@r-project.org > |Subject: Re: [R] data frame usage > | > |Hi, > | > |tapply(x$val, x$label, summary) > | > | > | > |On 25/10/2007, Bernd Jagla <[EMAIL PROTECTED]> wrote: > | > | Hi, > | I am new to R and couldn't find any information on how to handle > my > |table > | data that I just read in the way I want to use it.. > | > | I read in a table from a file: > | x <- read.delim("filenam", header=TRUE) > | > | one column (x$label) hold the class labels. Another holds some > values > | (x$val). > | I want to calculate summary statistics for different classes. > | > | How would I do this? > | > | Thanks, > | > | Bernd > | > | ______________________________________________ > | R-help@r-project.org mailing list > | https://stat.ethz.ch/mailman/listinfo/r-help > |<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. > | > | > | > | > | > |-- > |Henrique Dallazuanna > |Curitiba-Paraná-Brasil > |25° 25' 40" S 49° 16' 22" O > > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O [[alternative HTML version deleted]]
______________________________________________ R-help@r-project.org 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.
