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Recategorizing Nominal variable
4 messages · Michael Leitson, R. Michael Weylandt, Bert Gunter +1 more
On Tue, Sep 25, 2012 at 2:22 PM, Michael Leitson
<Michael.Leitson at wellstar.org> wrote:
Hello, I would like to take a data set of doctors, and recategorize them into numbers. For example, John Doe would be assigned as 1 Jane Doe would be assigned as 2 Does anyone know how to do this in R? It seems quite easy, yet I cannot find the code. Thank you,
Try something like as.numeric(factor(x)) This works because factors are internally coded as one integer per unique level. Cheers, Michael
Michael Leitson Research Intern MSAS Candidate Michael.Leitson at wellstar.org
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Unless you have good reason and know what you're doing, **don't do this!** It is just asking for trouble. ... and yes, it is easy. Have you gone through the "Intro to R" tutorial that I believe would provide you the information to do this? Cheers, Bert On Tue, Sep 25, 2012 at 6:22 AM, Michael Leitson
<Michael.Leitson at wellstar.org> wrote:
Hello, I would like to take a data set of doctors, and recategorize them into numbers. For example, John Doe would be assigned as 1 Jane Doe would be assigned as 2 Does anyone know how to do this in R? It seems quite easy, yet I cannot find the code. Thank you, Michael Leitson Research Intern MSAS Candidate Michael.Leitson at wellstar.org
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only for the individual or entity to whom addressed. This email
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Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm
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