Re: [R] question with drm function in "drc package"

Thanks. I see what went wrong. 2015-12-07 16:33 GMT-05:00 Jeff Newmiller : > The fine manual for the drm function mentions a parameter "logDose" ... I > expect that since you did not specify it that the drm function is helpfully > attempting to take the log of your

[R] question with drm function in "drc package"

Hi all, I am trying to use the drm function in drc package to fit a 4 PL or 3PL curve for an assay response. Please see the listed data below. When I do the curve fitting, it returns the following error message. Anyone who familiar with this have any input on what went wrong? Thanks so much

Re: [R] question with drm function in "drc package"

The fine manual for the drm function mentions a parameter "logDose" ... I expect that since you did not specify it that the drm function is helpfully attempting to take the log of your data for you. I highly recommend reading up on making reproducible examples so your helpers can experiment