Re: [R] limit of detection (LOD) by logistic regression

Dear Ellison, You are right, now the figure is good! Question solved. Thank you very much! Best wishes, Luigi -Original Message- From: S Ellison [mailto:s.elli...@lgcgroup.com] Sent: 24 July 2012 10:20 To: Luigi; r-help@r-project.org Subject: RE: [R] limit of detection (LOD) by logistic

Re: [R] limit of detection (LOD) by logistic regression

> set 1; however the figure obtained from the sample set 2 > shows that interpolation is not correct. I don't think the interpolation is incorrect; what is making it look incorrect is using a straight line to represent a logistic regression. Try adding the predicted values for the line to your p