[R] Creating Binary Outcomes from a continuous variable

From: Doran, Harold <HDoran_at_air.org>
Date: Wed 07 Jul 2004 - 22:57:15 EST

Dear List:  

I have searched the archives and my R books and cannot find a method to transform a continuous variable into a binary variable. For example, I have test score data along a continuous scale. I want to create a new variable in my dataset that is 1=above a cutpoint (or passed the test) and 0=otherwise.  

My instinct tells me that this will require a combination of the transform command along with a conditional selection. Any help is much appreciated.  



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