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Re: st: R: Log of nonpositive numbers


From   Richard Williams <Richard.A.Williams.5@ND.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: R: Log of nonpositive numbers
Date   Sat, 29 Mar 2008 23:44:27 -0500

At 10:09 PM 3/29/2008, Austin Nichols wrote:
No, it would not be okay.  You might instead pick an alternative
transformation that is similar to the log but allows for nonpositive
arguments.
  ssc inst transint
  help transint
has a useful discussion of alternatives.
Thanks for pointing that out Austin (and to Nick C. for writing -transint-). So, would economists recommend the cube root function for something like wealth that can go negative, or would some other transformation be more common?


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Richard Williams, Notre Dame Dept of Sociology
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