I am using the grid lpackage to place my graphs that I made with ggplot2:
library(ggplot2)
library(grid)
Layout <- grid.layout(nrow = 4, ncol = 4,
widths = unit(1, "null"),
heights = unit(c(0.4, 0.8, 1.2, 1.2), c("null", "null", "null")))
grid.show.layout(Layout)
plot1 = ggplot(diamonds, aes(clarity, fill = color)) +
geom_bar() +
facet_wrap(~cut, nrow = 1)
print(plot1 + theme(legend.position = "none"),
vp = viewport(layout.pos.row = 3, layout.pos.col = 1:4))
The problem is that I want to put the plot on the third row (3,1) - (3,4) and put the legend at the (4,4) position. Unfortunately, I can't really find a way to create just a legend variable.
I searched online and the closest that I got was using the older
+ opts(keep = "legend_box")
but that has been deprecated.
older solution.
Example 1: Remove All Legends in ggplot2 We simply had to specify legend. position = “none” within the theme options to get rid of both legends.
You can place the legend literally anywhere. To put it around the chart, use the legend. position option and specify top , right , bottom , or left . To put it inside the plot area, specify a vector of length 2, both values going between 0 and 1 and giving the x and y coordinates.
You can get the legend from the grob
object of the ggplot. Then you could use the grid.arrange
function to position everything.
library(gridExtra)
g_legend<-function(a.gplot){
tmp <- ggplot_gtable(ggplot_build(a.gplot))
leg <- which(sapply(tmp$grobs, function(x) x$name) == "guide-box")
legend <- tmp$grobs[[leg]]
legend
}
legend <- g_legend(plot1)
grid.arrange(legend, plot1+ theme(legend.position = 'none'),
ncol=2, nrow=1, widths=c(1/6,5/6))
There are lots of examples on the web using the g_legend
function.
HTH
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With