On 07/01/2010 01:33 PM, Changbin Du wrote:
Read the ROCR package, it is very good.

Just be sure you really need an ROC curve. More often than not it gets in the way of understanding.

Frank






On Thu, Jul 1, 2010 at 9:50 AM, ashu6886<ashu.infy.m...@gmail.com>  wrote:


Hi,

i have a fairly large amount of genomic data. I have created a dataframe
which has "Reference" as one column and "Variation" as another. I want to
plot a ROC curve based on these 2 columns. I have serached the R manual but
I could not understand. Can anybody help me with the R code for plotting
ROC
curve.

Thnx
ashu6886
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--
Frank E Harrell Jr   Professor and Chairman        School of Medicine
                     Department of Biostatistics   Vanderbilt University

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