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似乎我无法在第一次尝试时使用功能调色板(rainbow())更新颜色,但在第二次尝试时成功。有更聪明的方法来更新颜色,而不是我的方式来调用该函数两次?R:调色板(彩虹())没有为第一次尝试更新
# call the function
colRainbow = palette(rainbow(3))
colRainbow
# [1] "red" "green" "blue"
# success!
# call the function, overwrite the object colRainbow
colRainbow = palette(rainbow(5))
colRainbow
# [1] "red" "green" "blue"
# Fail!
# Re-overwrite the object
colRainbow = palette(rainbow(5))
colRainbow
# [1] "red" "#CCFF00" "#00FF66" "#0066FF" "#CC00FF"
# success!
相关 - https://stackoverflow.com/questions/35734705/colors-incorrect-on-first-execution-of-code/35735749 – thelatemail