CODEWITHSUNDEEP
r
Samy Geronymos
Samy Geronymos

Reputation: 405

How to combine mutliple calls to a function?

I would like to generalize my function calls to be able to pass these calls to a second function as parameters.

In my case I have mutliple ggplots that I store as a list for example:

year.plots <- lapply(c("2008","2009","2010","2011","2012","2013","2014"),
   FUN=function(x){
   ggplot(data=french.temp.load[french.temp.load$Year==x,],
   aes(x=Temperature_K,y=load,color=Month)) +
   geom_point(alpha=0.5)
   })

Now I would like to passe them to grid.arrange. Is it possible to do something like this?

grid.arrange(seq(year.plots),ncol=3)

Thanks

Upvotes: 2

Views: 188

Answers (1)

Dason
Dason

Reputation: 61983

I think this is what you want. It's hard to be sure since I don't use grid stuff often and you didn't provide a reproducible example.

# Make example data
p <- qplot(rnorm(30))
year.plots <- list(p, p, p, p, p, p, p)
# This will basically construct the call
# grid.arrange(p, p, p, p, p, p, p, ncol = 3)
do.call(grid.arrange, c(year.plots, ncol = 3))

Upvotes: 1

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