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...:x2 on y-axis, can I somehow relate the value of the interaction term at a particular point in time to the slope of the linear x2 term at that point in time? Appreciate any help with this as I am relatively new to both r and gam(m). Aino Hosia Postdoc Institute of Marine Research PO Box 1870 Nordnes, N-5817 Bergen, Norway (Nordnesgaten 50) Tel: +47 55 23 53 49 E-mail: aino.hosia at imr.no

...o nice barplots in 1.7.0, = but the first one is bad in 1.9.0: par(mfrow=3Dc(1,2)) x <- rep(1:10,10) y <- runif(100,1,100) z <- tapply(y,x,mean) barplot(z) barplot(as.numeric(z)) although is.numeric(z) returns TRUE! Best regards, Vidar Hjellvik Institute of Marine Research P.O.Box 1870 Nordnes N-5817 Bergen phone: +47 55 23 86 62 email: vidarh@imr.no

...e an "Error: object 'Cx12' not found". If anyone has a solution to the above problem, or alternative solutions to getting the decomposition done, I would much appreciate the help! Regards, Aino Aino Hosia Postdoc Havforskningsinstituttet/Institute of Marine Research PO Box 1870 Nordnes, N-5817 Bergen, Norway (Nordnesgaten 50) Tel: +47 55 23 53 49 E-mail: aino.hosia@imr.no<mailto:aino.hosia@imr.no> www.imr.no<http://www.imr.no/> [[alternative HTML version deleted]]

...e: "Error in eval(expr, envir, enclos) : object 'fixed' not found" (and I am anyway not sure if this is a valid approach between Poisson and negbin gamms). I am most grateful for any help! Aino Aino Hosia Postdoc Havforskningsinstituttet/Institute of Marine Research PO Box 1870 Nordnes, N-5817 Bergen, Norway (Nordnesgaten 50) Tel: +47 55 23 53 49 E-mail: aino.hosia@imr.no<mailto:aino.hosia@imr.no> www.imr.no<http://www.imr.no/> [[alternative HTML version deleted]]

...tebg()) x.data <- rnorm(16,20,7);y.data <- rnorm(16,.55,.25); z.data <- sample(1:4,16,replace=T) xyplot(y.data~x.data|z.data, layout=c(2,2), scales=list(x=list(alternating=F),y=list(alternating=F),tck=c(-1,0))) Cheers ??lafur A. Ing??lfsson Institute of Marine Research PO Box 1870 Nordnes 5817 Bergen, Norway