R语言 colors()用法及代码示例

R 语言中的 colors() 函数用于显示 R 编程中包含的所有 657 种颜色名称。

用法： colors()
参数： 
Does not accept any parameters. 
 

范例1：

# R program to illustrate
# colors function
 
# Calling the colors() function
# to show all the 657 colors that
# names are contained in
# R programming
colors()

输出：

[1] "white"                "aliceblue"            "antiquewhite"        
[4] "antiquewhite1"        "antiquewhite2"        "antiquewhite3"       
[7] "antiquewhite4"        "aquamarine"           "aquamarine1"
...
...
[655] "yellow3"              "yellow4"              "yellowgreen"

范例2：

# R program to illustrate
# colors function
 
# Calling the colors() function
# with specific serial number of
# color names contained in R
# Programming
colors()[1]
colors()[3]
colors()[10]
colors()[655]
colors()[656]

输出：

[1] "white"
[1] "antiquewhite"
[1] "aquamarine2"
[1] "yellow3"
[1] "yellow4"