[R] Fwd: Advise in R- plotting graphs

From: Jason Lee <huajie.lee_at_gmail.com>
Date: Sat, 24 May 2008 00:06:18 +1000

Hi

I tried and it is not what im looking ..

I basically issue plot(data$"V1",data$"V2") as the matrix have the two headers..But essentially what I would like is relabel or somehow differentiate row 5 from the rest of the points on the graph.

In other words, I wanted to see all the points but at the same time see the particular point (row 5 in this case) on the graph as another point of color in the graph.

Please advise.

Thanks.,

On Fri, May 23, 2008 at 11:00 PM, jim holtman <jholtman_at_gmail.com> wrote:

> try this:
>
> x <- matrix(runif(15, 100, 300), ncol=3)
> plot(x[,1], x[,2], type='l')
> points(x[5,1], x[5,2], pch=17, cex=3, col='red') # plot point #5
>
> On Fri, May 23, 2008 at 8:50 AM, Jason Lee <huajie.lee_at_gmail.com> wrote:

>
>> Hi
>>
>> I have a data table matrix,"data" which looks like below:-
>> V1 V2 V3
>> 1 -6382.719 -1096.554 6998994
>> 2 -some values-
>> 3 -some values-
>> 4 -some values-
>> 5 -some values-
>>
>> Querying dim of "data" gives me 3 columns and 5 rows.
>>
>> And currently I want to plot "V1" against "V2" with the condition that I
>> want to mark(color) the point(row 5) on the graph. This is so i could see
>> some triangle shape thing on the graph for row 5.
>>
>> I couldnt recall how I could use repo() to change the line 5 to some value
>> to differentiate with others. And then using PCH for the color.
>>
>> Please advise. Thanks.
>>
>> -jason
>>
>> [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> 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<http://www.r-project.org/posting-guide.html>
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
>
> --
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
>
> What is the problem you are trying to solve?

        [[alternative HTML version deleted]]



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