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isher_lecture
2006 Feb 21
3
How to get around heteroscedasticity with non-linear leas t squares in R?
Your understanding isn't similar to mine. Mine says robust/resistant
methods are for data with heavy tails, not heteroscedasticity. The common
ways to approach heteroscedasticity are transformation and weighting. The
first is easy and usually quite effective for dose-response data. The
second is not much harder. Both can be done in R with nls().
Andy
From: Quin Wills
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