Hi, a is of length 60. b is of length 60. z is of length 57.
What do you expect to have happen when you create y_model ? What happens to those other 3 observations? Sarah On Tue, Oct 27, 2020 at 3:07 PM varin sacha via R-help <r-help@r-project.org> wrote: > > Dear R-experts, > > Here below my R code. The warning message is not a problem to me but there is > an error message more problematic. I understand the error message but I don't > know if it is possible to correct the error and if yes, how to correct it. > > Many thanks. > > > n <- 60 > b <- runif(n, 0, 5) > a <- runif(n, 0, 5) > z <- rnorm(n*0.95,2,3) + rnorm(n*0.05,2,9) > y_model <- 0.1 * b - 0.5 * z - a + 10 > y_obs <- y_model +c( rnorm(n*0.95, 0, 0.1), rnorm(n*0.05, 0, 0.5) ) > df<-data.frame(b,a,z,y_obs) > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Sarah Goslee (she/her) http://www.numberwright.com ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.