Search found 2 matches
Search found 2 matches • Page 1 of 1
- Fri Oct 26, 2012 10:39 am
- Forum: GenABEL
- Topic: Is it possible to obtain Youden's Index from PredictABEL?
- Replies: 1
- Views: 1030
Hi, If definition of Youden index is (Sensitivity + Specificity − 1), then you only need to calculate sensitivity and specificity at every cut-off values along ROC plots. These can be obtained from the function ‘performance’ in ROCR package. The same function was used in PredictABEL package to calcu...
- Mon May 23, 2011 1:47 pm
- Forum: Journal Club on Statistical Genomics
- Topic: [Solved] Methodology for prediction equations of phenotypic
- Replies: 3
- Views: 4715
Dear Nicolas, I am currently associated with comparing different simulation methods which have been used in (geneic) risk prediction studies and working with Cecile Janssens group in Erasmus MC, Rotterdam. Following links may be usefull in your project. 1. PredictABEL: an R package for the assessmen...