Re: [R] Calculate LC50

Have a look at the drc-package. btw. a linear model does not fit your data very well. Cheers. Am 22.02.2018 um 08:20 schrieb AbouEl-Makarim Aboueissa: > Dear All: good morning > > > I need helps with the calculation of the *LC50* from the data below > > > x<-c(0,0.3,0.7,1,4,10) > y<-c(100,

[R] Calculate LC50

Dear All: good morning I need helps with the calculation of the *LC50* from the data below x<-c(0,0.3,0.7,1,4,10) y<-c(100,86,65,51.3,19.2,7.4) yxreg<-lm(y~x) any help will be highly appreciated. with many thanks abou __ *AbouEl-Makarim Aboueissa, PhD* *Professor of