Re: [R] How to fix an error in nonlinear regression

Hello, This is cross posted [1] which is not well seen. Post and wait for an answer, which you got and are now asking the same, why? Maybe with time other answer will be posted to the first, original, question. [1] https://stackoverflow.com/questions/62051714/how-can-i-fix-an-error-in-nonli

Re: [R] How to fix an error in nonlinear regression

Thanks a lot. On Thu, May 28, 2020 at 1:15 AM John Kane wrote: > You have subset=state==”treated”). You need to change "treated” to > "treated". Tho " " are formatted in your example. > > On Wed, 27 May 2020 at 15:48, Vahid Borji wrote: > >> Hello my R friends, >> I am using the below commands

Re: [R] How to fix an error in nonlinear regression

You have subset=state==”treated”). You need to change "treated” to "treated". Tho " " are formatted in your example. On Wed, 27 May 2020 at 15:48, Vahid Borji wrote: > Hello my R friends, > I am using the below commands in R: > > attach(Puromycin) > Puromycin > plot(Puromycin$conc,Puromycin$rate

[R] How to fix an error in nonlinear regression

Hello my R friends, I am using the below commands in R: attach(Puromycin) Puromycin plot(Puromycin$conc,Puromycin$rate) mm=function(conc,vmax,k) vmax*conc/(k+conc) mm mm1=nls(rate~mm(conc,vmax,k),data=Puromycin,start=c(vmax=50,k=0.05),subset=state==”treated”) mm1 Unfortunately, I receive the bel