[R] plotting simple plot with error bars

[Andrew Robinson]

Also, try

?arrows

Andrew

At 10:34 AM 6/16/2002 -0500, Kenneth Cabrera wrote:


>Timur Elzhov wrote:
>
>>Hello!
>>
>>I'm novice in R, so excuse me if my question will be quite trivial.
>>I look through all the demos and examples, but could not find how could I
>>plot 'classical' simple graph with error bars.  That is, I have dataframe
>>with 3 columns: "x", "y" and "dy" -- how can I get points (x, y) with,
>>for example, short lines of length "dy" up and down from "y"?
>I have a very crude solution....
>
>
>attach(dataframe)
>plot(x,y)
>for (i in 1:length(x)) { lines(c(x[i],x[i]),c(y[i]-dy[i],y[i]+dy[i])) }
>
>
>I hope it will helps
>
>
>>
>>Thanks.
>>
>>
>>Timur.
>>
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