Hi
r-help-boun...@r-project.org napsal dne 14.06.2010 11:05:39:
>
> Hi,
> I have a data frame that looks like this:
>
> ID
> Var
> Var2
> Var3
> xxx
> 100
> 909
> 920
> yyy
> 110
> 720
> 710
> zzz
> 140
> 680
> 690
>
> I can load the file and produce a plot from values from one column.
> > data <- read.csv("test.csv")
> > barplot(data$Var2)
> So far it's fine.
> The data frame however has more columns with integer values in
reality and I
> want to plot from consecutive values of the SAME ROW.
> Something like:
> > barplot(data[1, 2:3])
> or more generic:
> > barplot(data[row.id, from.field:to.field])
E.g. unlist
barplot(unlist(data[row.id, from.field:to.field]))
Regards
Petr
> Unfortunately this no longer is a vector! I understand that it could
contain
> non-numeric values which in my data frame is not the case.
> How can I convert a "horizontal" one-line-data-frame into a vector?
> Any help appreciated,
> best regards,
> Jörg
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