Nomogram is user-friendly, but the equation is also acceptable. It should be kept in mind that the process of model development really counts.
BTW: You can calculate C-index (AUC) in SPSS. Calibration plot can also be plotted (may be manually) from the result of SPSS. *Yao Zhu* *Department of Urology Fudan University Shanghai Cancer Center Shanghai, China* 2011/8/1 sytangping <surgeon666...@yahoo.com.cn> > Dear R users, > > I am a new R user and something stops me when I try to write a academic > article. I want to make a nomogram to predict the risk of prostate cancer > (PCa) using several factors which have been selected from the Logistic > regression run under the SPSS. Always, a calibration plot is needed to > validate the prediction accuracy of the nomogram. > However, I tried many times and read a lot of posts with respect to this > topic but I still couldn't figure out how to draw the nomogram and the > calibration plot. My dataset and questions in detail are shown in two > attached files. It will be very grateful if someone can save his/her time > to > help for my questions. > > Warmest regards! > > Ping Tang http://r.789695.n4.nabble.com/file/n3710068/Dataset.xls > Dataset.xls http://r.789695.n4.nabble.com/file/n3710068/R_help.doc > R_help.doc > > -- > View this message in context: > http://r.789695.n4.nabble.com/How-to-make-a-nomogam-and-Calibration-plot-tp3710068p3710068.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
