我有一些海拔数据,希望将其与数据集中的气候类别相关联。当我尝试将其绘制为条形图以查看类别沿高程的分布时,ggplot
的geom_bar
中的某些内容将y轴比例转换为一些奇怪的值。这是示例:
# Example dataset
data_mountain_A <- data.frame(elevation=c(0,500,1000,1500,2000),
temperature=c(20,16,12,8,5),
name="A")
data_mountain_B <- data.frame(elevation=c(0,500,1000,1500,2000,2500,3000),
temperature=c(20,16,12,8,5,0,-5),
name="B")
data_merge <- rbind(data_mountain_A, data_mountain_B)
# Creates the temperature intervals
data_merge$temperature_intervals <- cut(data_merge$temperature,seq(-5,20,5))
# Fancy colors
colfunc <- colorRampPalette(c("white","light blue","dark green"))
# Plot
ggplot(data=data_merge, aes(fill=temperature_intervals, y=elevation, x=name)) +
geom_bar(stat="identity") +
scale_fill_manual(values=colfunc(5))
这是我得到的输出:
关于我在做什么错的任何提示?谢谢!