I have a general stats question for you guys: How does one normally deal with zero (0) values when log transforming data?
I would like to log transform (natural log, ln) several response variables for use in quantile regression. But one of my variables includes several zero values. Since ln(0) = infinity, this is not readily possible. Is it best to remove all data with zero values? Or should I add a very small number to each value (e.g., 0.00001)? This seems problematic. Is there an easy way to address this issue? Thanks much for your help, --Nate _________________________________ Nathan S. Upham Ph.D. student Committee on Evolutionary Biology University of Chicago 1025 E. 57th St., Culver 402 Chicago, IL 60637 nsup...@uchicago.edu _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
