R语言调色板定义20种不同颜色 步骤及代码示例 1. 定义一个包含20种颜色的向量 # 创建包含20种颜色的向量colors<-c("red","blue","green","orange","yellow","purple","pink","brown","cyan","magenta","lime","olive","teal","navy","maroon","aqua","fuchsia","silver","gray","black") 1....
colors <- colorRampPalette(c("blue", "red"))(5) plot(5:1, bg = colors[rank(5:1)], cex = 2, pch = 22) 效果图如下: 从图中可以看出,数值1到5, 对应的颜色为蓝色渐变到红色