IDI & NRI : p-value=0 with PredictABEL

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LucasM
Posts: 1
Joined: Wed Aug 19, 2015 10:13 pm

IDI & NRI : p-value=0 with PredictABEL

Postby LucasM » Wed Aug 19, 2015 10:20 pm

Hi,

I've been using PredictABEL's reclassification tool to find IDI and both categorical and continuous NRI, and I keep getting p-value=0 for some of my values.

Example 1 :
NRI(Categorical) [95% CI]: 0.1332 [ 0.0721 - 0.1944 ] ; p-value: 2e-05
NRI(Continuous) [95% CI]: 0.1836 [ 0.0835 - 0.2838 ] ; p-value: 0.00033
IDI [95% CI]: 0.0127 [ 0.0075 - 0.018 ] ; p-value: 0

Example 2:
NRI(Categorical) [95% CI]: 0.2165 [ 0.1467 - 0.2864 ] ; p-value: 0
NRI(Continuous) [95% CI]: 0.3607 [ 0.2622 - 0.4592 ] ; p-value: 0
IDI [95% CI]: 0.0255 [ 0.0182 - 0.0328 ] ; p-value: 0

Does anyone know what might be going on here?

Thank you!

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