[R] Still struggling with facet_grid_paginate() from package ggforce.

[Rui Barradas]

Hello,

Here are two ways.

The first is an adaptation from your code. It uses facet_wrap_paginate, 
not *_grid_*.


plotObj2 <- vector("list",2)
for(pg in 1:2) {
   plotObj2[[pg]] <- ggplot(egDat) +
     geom_point(aes(y = obsd, x = x),
                na.rm = TRUE, shape = 20, colour = "blue") +
     geom_line(aes(y = fit2, x = cPred)) +
     facet_wrap_paginate(facets = ~Trt,
                         ncol = 4, nrow = 3, page = pg) +
     theme_bw()
}
print(plotObj2)


The second is an adaptation of SO[1]. It needs two calls to the plot 
code and it's slower but gets the job done.


g <- ggplot(egDat) +
   geom_point(aes(y = obsd, x = x),
              na.rm = TRUE, shape = 20, colour = "blue") +
   geom_line(aes(y = fit2, x = cPred)) +
   facet_wrap_paginate(facets = ~Trt, ncol = 4, nrow = 3, page = 1) +
   theme_bw()

n <- n_pages(g)
for(i in 1:n){
   print(g + facet_wrap_paginate(~Trt, ncol = 4, nrow = 3, page = i))
}

print(g)



Hope this helps,

Rui Barradas


[1] https://stackoverflow.com/a/58373858/8245406


Às 11:46 de 01/12/19, Rolf Turner escreveu:
> 
> I am trying to produce a ggplot2 graphic in which there is a single 
> conditioning variable with a large number of levels (24).
> 
> If I use facet_grid() I get a plot with either 24 rows or 24 columns,
> both of which look like hell.
> 
> I thought that facet_grid_paginate() would rescue me, but it doesn't 
> seem to.  I ask for 3 rows and 4 columns, and thought that I would get 
> two 3 x 4 pages  Instead I get six pages with only one row (of four 
> facets) per page.
> 
> Am I misunderstanding something?  Doing something silly?  Or is this a bug?
> 
> I have attached a reproducible example, along with the data set on which 
> it depends.
> 
> Grateful for any insight.
> 
> cheers,
> 
> Rolf Turner
> 
> 
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