On 16/02/15 13:36, Bingzhang Chen wrote:
Hi R users,
I have a problem on how to pass an extra argument to do. call:
The example codes are:
#--------------------------------------------
require(ggplot2)
plots = lapply(1:5, function(.x) qplot(1:10,rnorm(10), main=paste("plot",.x)))
require(gridExtra)
do.call(grid.arrange, plots)
#---------------------------------------------
I want to force the composite figures into 2 rows by adding 'now = 2'
You mean 'nrow = 2', but I wasn't fooled for an instant! :-)
in the function 'grid.arrange'. How can I do it?
I searched on google but could not find a workable solution.
I am working on RStudio 0.98.1102 on OSX Yosemite 10.10.2.
Try:
do.call(grid.arrange,c(plots,list(nrow=2))
The second argument to do.call() consists of a list constituting the
arguments to the first argument. So just append the argument you want
to use, to this list. Easy, once you know. :-)
cheers,
Rolf Turner
P. S. Thank you for providing a clear and reproducible example.
R. T.
--
Rolf Turner
Technical Editor ANZJS
Department of Statistics
University of Auckland
Phone: +64-9-373-7599 ext. 88276
Home phone: +64-9-480-4619
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