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Error in select(., cyl, mpg) : unused arguments (cyl, mpg)

Error in select(., cyl, mpg) : unused arguments (cyl, mpg)

问题:

#由于来自MASS包的select()函数与来自dplyr包的select()函数冲突,因此会发生错误。

library(dplyr)
library(MASS)

#find average mpg grouped by 'cyl'
mtcars %>%
  select(cyl, mpg) %>%
  group_by(cyl) %>%
  summarise(avg_mpg = mean(mpg))

解决:

#指定使用那个包的select函数就好了

library(dplyr)
library(MASS)

#find average mpg grouped by 'cyl'
mtcars %>%
  dplyr::select(cyl, mpg) %>%
  group_by(cyl) %>%
  summarise(avg_mpg = mean(mpg))

完整错误:

library(dplyr)
library(MASS)

#find average mpg grouped by 'cyl'
mtcars %>%

  • select(cyl, mpg) %>%
    
  • group_by(cyl) %>%
    
  • summarise(avg_mpg = mean(mpg))
    
    Error in select(., cyl, mpg) : unused arguments (cyl, mpg)

本文转载自: https://blog.csdn.net/zhongkeyuanchongqing/article/details/120624976
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