Move legend outside the plot to the left at the bottom (in R)

Question

I used the likert and ggplot2 package to create this graph. Now, I would like to move the legend at the bottom a little bit to the left, as the last part (Strongly Agree) is not shown in the graph. Unfortunately, I could not find a solution so far. How can I move/shift the legend to the left?

The code:

plot(Likert_Uni_Study_Orientation_OF_V, low.color = "#007CC2", high.color = "#F7971C", neutral.color = "grey", neutral.color.ramp = "white", text.size=9) +
  theme(legend.text=element_text(size=24, margin = margin(r = 30, unit = "pt"))) + 
  theme(legend.direction = "horizontal", legend.position = "bottom") +
  theme(legend.title = element_blank()) +
  ggtitle("Uni Study Orientation – Only Fusha Learners") +
  theme(plot.title = element_text(hjust = 0.5, size =30)) + 
  theme(text = element_text(size = rel(6), color = "black"), axis.text.y = element_text(color = "black")) + 
  theme(axis.text.x = element_text(colour="black", size="30")) + 
  theme(axis.title.x = element_text(vjust=2, size=20, color = "black")) 

Thank you for your help!

Answer 1

Specify a higher value for the width argument when saving to a file.

library(likert)

data(pisaitems)
items29 <- pisaitems[,substr(names(pisaitems), 1,5) == 'ST25Q']
names(items29) <- c("Magazines", "Comic books", "Fiction", 
                    "Non-fiction books", "Newspapers")
l29 <- likert(items29)

plot(l29)

Notice how the legend is clipped. Now send the plot to file and change the default value for width (for png it is 480). You may need a few trials until it appears just right.

png("l29.png", width=480*1.6)
plot(l29)
dev.off()

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Another option is to place the legend on the right:

plot(l29, legend.position="right")