我尝试过以下操作:
ggplot(geography) + geom_sf(aes(fill=rate, color = NULL))
但那并没有摆脱边界线.
我正在尝试为geom_point大小添加一个条件，并在下面粘贴了示例。我希望当n_in_stat为4或更大时，geom_point的大小为2，而当n_in_stat小于4时，大小为5。我尝试将ifelse语句放入geom_point内，但这失败了。也许我不能在这里包括逻辑运算符，而我必须在data.frame中创建一个新列并将其大小设置为？
geom_point（size = ifelse（n_in_stat <4，5，2））+＃尝试使用ifelse设置大小
geom_point（aes（size = n_in_stat））+＃原始线性缩放
library(ggplot2)
# Create a long data.frame to store data...
growth_series = data.frame ("read_day" = c(0, 3, 9, 0, 3, 9, 0, 2, 8),
"series_id" = c("p1s1", "p1s1", "p1s1", "p1s2", "p1s2", "p1s2", "p3s4", "p3s4", "p3s4"),
"mean_od" = c(0.6, 0.9, 1.3, 0.3, 0.6, 1.0, 0.2, 0.5, 1.2),
"sd_od" = c(0.1, 0.2, 0.2, 0.1, 0.1, 0.3, 0.04, 0.1, 0.3),
"n_in_stat" = c(8, 8, 8, 8, 7, 5, 8, 7, 2)
)
# Plot using ggplot... …