R help - May 2011 - Standard error lines within xyplot trellis plots

Hi

I'm using the lattice function to plot catch data for two types of catch
between two communities over time using the xyplot. I've used
*"smooth"*when specifying
* type=c(  )* . Here is a sample of my code below:
> xyplot(ns+ rc~wk|location, type=c("p", "smooth"),
xlab="Week",
+ main="Native shrimp and Crayfish catches within Frenchman and
Punches",
+ ylab="Native shrimp and Crayfish catch (Kg)")

'ns' and 'rc' refer to the two catch groups, 'wk' refers
to the week and
'location' refers to the two communities in which data were collected.

This works fine, however I'm also trying to create lines to show the
standard error on the same graph.

I've tried messing around with plot.CI etc with no success, any suggestions
would be much appretiated!

Tom

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