Re: [R] Calibration score for survival probability

2009-11-23 Thread Eleni Rapsomaniki
: Frank E Harrell Jr [mailto:f.harr...@vanderbilt.edu] Sent: 23 November 2009 13:01 To: Eleni Rapsomaniki Cc: r-help@r-project.org Subject: Re: [R] Calibration score for survival probability Eleni Rapsomaniki wrote: > Good afternoon! > > I need to evaluate the goodness-of-fit (aka calibra

Re: [R] Calibration score for survival probability

2009-11-23 Thread Frank E Harrell Jr
Eleni Rapsomaniki wrote: Good afternoon! I need to evaluate the goodness-of-fit (aka calibration) for survival probability estimates from a Cox model. I tried to use 'calibrate' in the Design package but I'm not sure if it should/would produce what I need (ie a chi-sq type statistic with a tabl

[R] Calibration score for survival probability

2009-11-23 Thread Eleni Rapsomaniki
Good afternoon! I need to evaluate the goodness-of-fit (aka calibration) for survival probability estimates from a Cox model. I tried to use 'calibrate' in the Design package but I'm not sure if it should/would produce what I need (ie a chi-sq type statistic with a table of expected vs observ