On Mar 25, 2010, at 9:51 AM, Frank E Harrell Jr wrote: > Marc Schwartz wrote: >> On Mar 25, 2010, at 8:54 AM, 笑啸 wrote: >>> Dear volunteer: >>> I am a graduate student of medcine in china.And now,I am devoting myself >>> to constructing a nomograms of bladder cancer.I want to do it with >>> R-project.However, I do not know how to construct a nomograms with >>> R-project.I want to get yours help,thank you! I wish you can tell me the >>> operating procedure of the R-project. >>> And I apologize for my english,it is poor,sorry! >>> >>> >>> truly yours >>> >>> >>> ding ding >> If you are referring to a regression model based nomogram to be used for >> prediction, see the nomogram() function in the 'rms' CRAN package by Frank >> Harrell. >> Also, if you go to rseek.org and search using the keyword 'nomogram' you >> will find this and some other functions that provide related functionality. >> HTH, >> Marc Schwartz > > In addition, you will have to be expert in the type of regression modeling > used to produce a reliable model that is then displayed in a nomogram. The > nomogram is the easy part; it is just a graphical display of a model. It is > not the model itself.
Picking up on the important points expressed by both Frank and Ted, I would point you to two excellent reference texts: First, Frank's own: Regression Modeling Strategies Springer, 2001 http://www.amazon.com/Regression-Modeling-Strategies-Frank-Harrell/dp/0387952322/ http://biostat.mc.vanderbilt.edu/twiki/bin/view/Main/RmS and second: Clinical Prediction Models: A Practical Approach to Development, Validation, and Updating Ewout W. Steyerberg Springer, 2008 http://www.amazon.com/Clinical-Prediction-Models-Development-Validation/dp/038777243X/ http://www.clinicalpredictionmodels.org/ HTH, Marc ______________________________________________ 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.
