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2010 Aug 17
1
ROCR predictions
...y,
I am having a problem building a ROC curve with my data using the ROCR
package.
I have 10 lists of proteins such as attached (proteinlist.xls). each of the
lists was calculated with a different p-value.
The goal is to find the optimal p-value for the highest number of true
positives as well as lowaest number of false positives.
As far as I understood the explanations from the vignette of ROCR, my data
of TP and FP are the labels of the prediction function. But I don't know how
to assign the right predictions to these labels.
BTW, Is there a way of finding the optimum in the curve? I mean t...