boxplot數(shù)值變量和分類變量關(guān)系畫圖報(bào)錯
win10，Rstudio 1.0.143，輸入boxplot(wind~month, airquality, xlab="month", ylab="wind speed")報(bào)錯：Error in eval(predvars, data, env) : object 'wind' not found，但是輸入boxplot(airquality$Wind~airquality$Month,xlab="month",ylab="wind speed")正常顯示，為什么？
2020-05-09
先把數(shù)據(jù)讀進(jìn)去
2018-03-25
你遇到過這個(gè)問題嗎?解決不了
2017-06-06
boxplot(Wind~Month, airquality, xlab="month", ylab="wind speed")
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