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2004 Feb 04
1
Fitting nonlinear (quantile) models to linear data.
...39; across a range of 'x'). As such, I am using the nonlinear quantile regression package (nlrq) to fit a michaelis mention type model. The errors I get (which are dependant on the quantile of interest and the particular dataset) tend to result in illogical regression results with the nlqr package. To test this, I created artificial datasets that were based on underlying asymptotic or linear data. When tested with a nonlinear model, the linear data produces an error (step factor reduced below 'midFactor'--a problem dealt with previously on this list). This script is b...