data frame usage
GREAT!!! Thanks so much !!! -B |-----Original Message----- |From: John Kane [mailto:jrkrideau at yahoo.ca] |Sent: Thursday, October 25, 2007 1:45 PM |To: Bernd Jagla; 'Henrique Dallazuanna' |Cc: r-help at r-project.org |Subject: Re: [R] data frame usage | |I think I also misunderstood. It sounds like you want |to subset the data set. | |Try |aa <- subset(x x$label == "xxx") |
|--- Bernd Jagla <baj2107 at columbia.edu> wrote:
| |> No, I just want to the values for one class nothing |> applied to them. |> So for example tapply(x$val, x$label, hist) gives me |> all kind of stats that |> can be used for plotting the histogram. But I want |> to plot the actual |> histogram for one class. |> I guess it would be easiest to take your construct |> and just "echo" the |> values for a specific class. |> I hope you understand better what I mean.... |> |> Thanks again, |> |> Bernd |> |> |-----Original Message----- |> |From: Henrique Dallazuanna |> [mailto:wwwhsd at gmail.com] |> |Sent: Thursday, October 25, 2007 1:34 PM |> |To: Bernd Jagla |> |Cc: r-help at r-project.org |> |Subject: Re: [R] data frame usage |> | |> |Yes, or |> | |> | tapply(x$val, x$label, summary)[[1]] |> | |> |for the first class. |> | |> |On 25/10/2007, Bernd Jagla <baj2107 at columbia.edu>
|> wrote:
|> | |> | Wow, that easy... |> | And how can get only the values for a specific |> class? |> | |> | Like tapply(x$val, x$label, ?echo?)$class1 |> | |> | What should echo be? |> | |> | Thanks, |> | B |> | |> | |-----Original Message----- |> | |From: Henrique Dallazuanna |> [mailto:wwwhsd at gmail.com] |> | |Sent: Thursday, October 25, 2007 1:15 PM |> | |To: Bernd Jagla |> | |Cc: r-help at r-project.org |> | |Subject: Re: [R] data frame usage |> | | |> | |Hi, |> | | |> | |tapply(x$val, x$label, summary) |> | | |> | | |> | | |> | |On 25/10/2007, Bernd Jagla <
|> baj2107 at columbia.edu> 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
|> | |
|> | |
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|> | |guide.html
|> | | and provide commented, minimal,
|> self-contained, reproducible
|> |code.
|> | |
|> | |
|> | |
|> | |
|> | |
|> | |--
|> | |Henrique Dallazuanna
|> | |Curitiba-Paran?-Brasil
|> | |25? 25' 40" S 49? 16' 22" O
|> |
|> |
|> |
|> |
|> |
|> |
|> |--
|> |Henrique Dallazuanna
|> |Curitiba-Paran?-Brasil
|> |25? 25' 40" S 49? 16' 22" O
|>
|> ______________________________________________
|> R-help at 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.
|>
|
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