Non linear equation how add confidence intervals

hi everyone,

I want add confidence intervals in this code:

model<-nls(y ~ b1x^b2,start = list(b1 = 10000,b2 = -1))
a<-signif(summary(model)$coef[1], 6)
c<-signif(summary(model)$coef[2], 3)
p<- ggplot(b, aes(x=x, y=y))+
geom_smooth(method = "nls",
formula=y ~ b1
method.args=list(start=c(b1 = 10000,b2 = -1)),se=FALSE,colour="red")

can you help me ?

Could you please turn this into a self-contained reprex (short for minimal reproducible example)? It will help us help you if we can be sure we're all working with/looking at the same stuff.

Right now the best way to install reprex is:

# install.packages("devtools")

If you've never heard of a reprex before, you might want to start by reading the help page. The reprex dos and don'ts are also useful.

If you run into problems with access to your clipboard, you can specify an outfile for the reprex, and then copy and paste the contents into the forum.

reprex::reprex(input = "fruits_stringdist.R", outfile = "")

For pointers specific to the community site, check out the reprex FAQ, linked to below.