[R] I have a question on nomograms.
Frank E Harrell Jr
f.harrell at Vanderbilt.Edu
Fri Mar 26 04:42:56 CET 2010
Gabor Grothendieck wrote:
> On Thu, Mar 25, 2010 at 10:43 PM, Frank E Harrell Jr
> <f.harrell at vanderbilt.edu> wrote:
>> (Ted Harding) wrote:
>>> They call this sort of interface "nomogram" too, and you can have
>>> a go at the one they offer for bladder cancer. This is not a
>>> graphical nomogram in the sense that you describe, rather it is
>>> a form-filling interface with boxes into which you insert
>>> information, and then press the button.
>> It is very curious that a site named nomogram.org would not contain a single
>> nomogram. I have pointed this out to the author of the site, who maintains
>> that disagreements with dictionaries are inconsequential.
> It is strange although I think that in certain areas of medicine its
> common to use the term nomogram to mean the model underlying the
> nomogram as opposed to its graphical representation.
> For example, in the following discussion the authors seem to be using
> nomogram merely to denote any model that does not involve forming
> discrete levels of the inputs in the way that forming risk groups
> (high risk group, low risk group, etc.) would:
It is not very common to use it in that manner although I have seen it a
few times. But it is never correct, even according to a medical
Frank E Harrell Jr Professor and Chairman School of Medicine
Department of Biostatistics Vanderbilt University
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