I think I also misunderstood. It sounds like you want to subset the data set.
Try aa <- subset(x x$label == "xxx") --- Bernd Jagla <[EMAIL PROTECTED]> wrote: > No, I just want to the values for one class nothing > applied to them. > So for example tapply(x$val, x$label, hist) gives me > all kind of stats that > can be used for plotting the histogram. But I want > to plot the actual > histogram for one class. > I guess it would be easiest to take your construct > and just "echo" the > values for a specific class. > I hope you understand better what I mean.... > > Thanks again, > > Bernd > > |-----Original Message----- > |From: Henrique Dallazuanna > [mailto:[EMAIL PROTECTED] > |Sent: Thursday, October 25, 2007 1:34 PM > |To: Bernd Jagla > |Cc: r-help@r-project.org > |Subject: Re: [R] data frame usage > | > |Yes, or > | > | tapply(x$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 > |<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 > > ______________________________________________ > 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. > ______________________________________________ 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.
