我正在使用以下数据和代码:
>
> dput(ddf)
structure(list(xx = c("aa", "bb", "cc"), gp = c("one", "two",
"one"), yy = c(5L, 10L, 15L)), .Names = c("xx", "gp", "yy"), class = "data.frame", row.names = c(NA,
-3L))
>
>
> ddf
xx gp yy
1 aa one 5
2 bb two 10
3 cc one 15
>
> ggplot(ddf)+geom_point(aes(x=xx, y=yy, size=gp))
>
这里的字号非常小,几乎看不清。如果它被着色,那么更加难以辨认。能否将字号增大,以便清晰可见?