If the data are from one data.frame (e.g., the iris data set), then simply
label the red and white flowers with different colors:
e.g.,
with the iris data set
plot(iris$Sepal.Length,iris$Sepal.Width,col=c("red","blue","black")[iris$Species],pch=c(16:18)[iris$Species])
Bill
On Oct 4, 2011, at 4:20 AM, Paul Hiemstra wrote:
> On 10/04/2011 06:19 AM, jricci wrote:
>> Have two sets of scatterplot data
>> hypothetically
>> a) stem lenght vs number of petals in red flowers
>> b) stem lenght vs number of petals in white flowers
>>
>> want to place on same scatter plot with same x,y axis but different collored
>> markers
>>
>> How do I do this in R
>>
>> --
>> View this message in context:
>> http://r.789695.n4.nabble.com/how-do-i-put-two-scatterplots-on-same-graph-tp3870030p3870030.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
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>
> Hi,
>
> You could take a look at the ggplot2 package.
>
> good luck,
> Paul
>
> --
> Paul Hiemstra, Ph.D.
> Global Climate Division
> Royal Netherlands Meteorological Institute (KNMI)
> Wilhelminalaan 10 | 3732 GK | De Bilt | Kamer B 3.39
> P.O. Box 201 | 3730 AE | De Bilt
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>
> http://intamap.geo.uu.nl/~paul
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>
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>
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