R help - Apr 2005 - select dataframe records

Hi,

I'm reading some data from a file. The code below plots the all records in a
barplot. How can I plot only records 5 to 10?

chldata <- read.table("test3.txt",header=TRUE)
barplot(rev(chldata$chlorophyll),horiz=TRUE,names.arg=rev(chldata$depth))

Thanks in advance,
Pieter
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Pieter Provoost wrote:
> Hi,
> 
> I'm reading some data from a file. The code below plots the all records
in a barplot. How can I plot only records 5 to 10?
By indexing?
Please read the psoting guide and the docs.


> chldata <- read.table("test3.txt",header=TRUE)
> barplot(rev(chldata$chlorophyll),horiz=TRUE,names.arg=rev(chldata$depth))
   with(chldata[5:10,],
     barplot(rev(chlorophyll), horiz=TRUE, names.arg=rev(depth))

Uwe Ligges

> Thanks in advance,
> Pieter
> 	[[alternative HTML version deleted]]
> 
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