[R] Need help using lattice

[Gerrit Draisma]

Ha David,
Thanks for your reply.
For your last question, you have to change month into an ordered factor 
variable:

library(lattice)
df <- expand.grid(site=c("een","twee","drie","vier","vijf"),
                  month=factor(3:12,levels=1:12,
                               labels=month.abb, ordered=TRUE))
df$conc <- rnorm(dim(df)[1])
dotplot(month~conc|site,data=df)

HTH, Gerrit



Op 08-02-2021 om 21:04 schreef Parkhurst, David F.:
> That worked nicely;  thanks again.  Here’s what I used for our data:
> 
> library(lattice)
> 
> df <- 
> expand.grid(site=c("CrCr","NFSC","MFSC","SFSC","LMO","MCE","MUE","MLE","MoCe"),months=1:9)
> 
> dotplot(months~conc | site, data=df)
> 
> The result is attached.  Is there a way to replace the month numbers on 
> the y axes with the names Apr-Dec?
> 
> David
>