I'm new to the ggplot plotting library in R and can't work out how to increase the size of my legend. I know you can do axis manipulation with theme(axis...) but I can't find the correct argument to pass!
The code I use to produce the figure is here:
library(ggplot)
library(ggalluvial)
ggplot(data = wrong_cases_all,
aes(axis1 = cae, axis2 = places,
y = freq)) +
scale_x_discrete(limits = c("CAE", "VGG16-Places365"))+
xlab("Model") +
geom_alluvium(aes(fill = freq)) +
geom_stratum() + geom_text(stat = "stratum", label.strata = TRUE) +
theme_minimal()
Does anybody have any tips?
Example data:
wrong_cases_all <- read.table(header=TRUE, text = "cae places freq
1 0 0 19462
2 0 1 23625
3 0 2 14431
4 0 3 9767
5 0 4 14025
6 1 0 8696
7 1 1 88510
8 1 2 12426
9 1 3 33408
10 1 4 16391
11 2 0 540
12 2 1 7908
13 2 2 2132
14 2 3 2429
15 2 4 11558
16 3 0 5215
17 3 1 19993
18 3 2 4361
19 3 3 5984
20 3 4 6993
21 4 0 2258
22 4 1 1382
23 4 2 1409
24 4 3 575
25 4 4 1338")
Add
...
+ theme(
legend.key.width = unit(1, "cm"),
legend.key.height = unit(2, "cm")
)
and change the units to what best fits your needs.
来源：https://stackoverflow.com/questions/54553544/how-to-increase-size-of-legend-in-ggplot2