zhu yao wrote:
Dear experts:
I am a newbie to R. Recently, I try to make prediction models with R and the
Design library.
I have read Prof. Harrell's excellent book. But I did not quite understand.
I have two problems about the validation and calibration of prediction
models:
1. Can someone explain the results outputted by the validate() function? How
to get 95% of c-value of validate?
validate does not provide that confidence interval, unfortunately.
2. How to add 95% ci in the calibration plot?
That is not provided except for survival models.
Next time please include your code so we can see what model you are using.
Thanks
Frank
Yao Zhu
Department of Urology
Fudan University Shanghai Cancer Center
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Frank E Harrell Jr Professor and Chair School of Medicine
Department of Biostatistics Vanderbilt University
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and provide commented, minimal, self-contained, reproducible code.
