R help - Sep 2010 - referencing last row in a column

I am trying to set u a limit for my plot window according to the range of a
year column I have.
The first year in the range is just simply the first row, referred to as
data$year[1]. How can I find the last row in a similar way to set the last
year in the range?

What I want to accomplish is the following: "plot(....,xlim c(data$year[1],
data$data[lastrow]),...)", is this possible?
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You could do data$year[ nrow(data) ]

On 23 September 2010 18:56, fugelpitch <jonas at runtimerecords.net>
wrote:
>
> I am trying to set u a limit for my plot window according to the range of a
> year column I have.
> The first year in the range is just simply the first row, referred to as
> data$year[1]. How can I find the last row in a similar way to set the last
> year in the range?
>
> What I want to accomplish is the following: "plot(....,xlim >
c(data$year[1], data$data[lastrow]),...)", is this possible?
> --
> View this message in context:
http://r.789695.n4.nabble.com/referencing-last-row-in-a-column-tp2551645p2551645.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
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> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

Thanks, but I have multiple entries for each year so the column reads:
year
1877
1877
1877
1877
1878
1878
1878
1878
1879
1879
1879
1879
....

So I need to pick out the year from the last row rather than just counting
rows.
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