Re: [R] calibration curve for cph()

2011-08-16 Thread Frank Harrell
...@yahoo.comgt; Cc: r-help@r-project.org lt;r-help@r-project.orggt; Sent: Monday, August 15, 2011 2:04 PM Subject: Re: [R] calibration curve for cph() Build a prediction function using 'Function' that gets applied to set2. Calibrate and validate. -- David Sent from my iPhone On Aug 15

Re: [R] calibration curve for cph()

2011-08-16 Thread array chip
- Original Message - From: Frank Harrell f.harr...@vanderbilt.edu To: r-help@r-project.org Cc: Sent: Tuesday, August 16, 2011 4:23 AM Subject: Re: [R] calibration curve for cph() David Winsemius wrote: A combination of Predict (your newdata), cut2, and the plotting function of your choice ought

Re: [R] calibration curve for cph()

2011-08-16 Thread David Winsemius
Subject: Re: [R] calibration curve for cph() David Winsemius wrote: A combination of Predict (your newdata), cut2, and the plotting function of your choice ought to suffice. But thought that cross-validation was an option. Not at console at the moment (just off airplane.) Sent from my

Re: [R] calibration curve for cph()

2011-08-16 Thread array chip
-help@r-project.org r-help@r-project.org Sent: Tuesday, August 16, 2011 11:27 AM Subject: Re: [R] calibration curve for cph() On Aug 16, 2011, at 1:57 PM, array chip wrote: Dear Frank, Thanks for suggesting val.surv() function from rms package. It's exactly what I need. I tried the example

[R] calibration curve for cph()

2011-08-15 Thread array chip
Hi, the calibrate.cph() function in rms package generate calibration curve for Cox model on the same dataset where the model was derived using bootstrapping or cross-validation. If I have the model built on dataset 1, and now I want to produce a calibration curve for this model on an

Re: [R] calibration curve for cph()

2011-08-15 Thread Comcast
Build a prediction function using 'Function' that gets applied to set2. Calibrate and validate. -- David Sent from my iPhone On Aug 15, 2011, at 11:31 AM, array chip arrayprof...@yahoo.com wrote: Hi, the calibrate.cph() function in rms package generate calibration curve for Cox model on

Re: [R] calibration curve for cph()

2011-08-15 Thread array chip
: Monday, August 15, 2011 2:04 PM Subject: Re: [R] calibration curve for cph() Build a prediction function using  'Function' that gets applied to set2. Calibrate and validate. -- David Sent from my iPhone Hi, the calibrate.cph() function in rms package generate calibration curve for Cox model

Re: [R] calibration curve for cph()

2011-08-15 Thread David
-project.org Sent: Monday, August 15, 2011 2:04 PM Subject: Re: [R] calibration curve for cph() Build a prediction function using 'Function' that gets applied to set2. Calibrate and validate. -- David Sent from my iPhone On Aug 15, 2011, at 11:31 AM, array chip arrayprof...@yahoo.com wrote