[R] change the colour line in gamm4 plotting

[Jim Lemon]

Hi Maria,
The "plot.gam" function doesn't use the "col" argument for lines, but
does change the color of points in the second example on the help
page. There doesn't seem to be an easy way to change the function to
get what you want.

Jim


On Tue, Jul 26, 2016 at 11:47 PM, Maria Lathouri via R-help
<r-help at r-project.org> wrote:
> Dear all
>
> I am stuck probably in a simple plotting question
>
> My model is:model.1<-gamm4(y~s(x1, by=end.group)+Year+K1+k2+k3, data=.., random=~(1|WB_ID/Site_ID))
> where y is my dependent variable, x1 is the smooth covariate and I use the by argument for the smooth term based on six different groups, and then the Year, k1, k2, k3 are explanatory fixed variables
>
> I use the plot command to plot the model and I get six different plots:plot(model.1$gam, pages=1, xlab=" ", ylab=" ")
> I would like to change the colour of the fitted and the standard error lines, from black which is the default to another colour; I tried to use the col=" " function, at least for the main line, in the plot command but it is not working.
>
> Any advice/suggestion is welcome.
> Many thanks.Maria
>
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