Tidyverse 和 dplyr- 错误 package 或命名空间

Question

I can't seem to get the filter function to work along with the loading of tidyverse. I have compared code and know that it is correct however I get error messages every time. I have checked multiple online resources and none seem to help. I also have updated all of my packages and restarted them. Any help is appreciated!

This is my code:

library(tidyverse)

ggplot(data = mpg) +
  geom_point(mapping = aes(x = displ, y = Hwy))

filter(mpg, cyl == 8)
filter(diamonds, carat > 3)

Errors:

library(tidyverse)

Error: package or namespace load failed for ‘tidyverse’ in loadNamespace(I, 
c(lib.loc, .libPaths()), versionCheck = vI[[i]]):
 namespace ‘rlang’ 0.4.2 is already loaded, but >= 0.4.3 is required
In addition: Warning message:
package ‘tidyverse’ was built under R version 3.6.3 

filter(mpg, cyl == 8)

Error in filter(mpg, cyl == 8) : object 'cyl' not found
    In addition: Warning messages:
    1: In data.matrix(data) : NAs introduced by coercion
    2: In data.matrix(data) : NAs introduced by coercion
    3: In data.matrix(data) : NAs introduced by coercion
    4: In data.matrix(data) : NAs introduced by coercion
    5: In data.matrix(data) : NAs introduced by coercion
    6: In data.matrix(data) : NAs introduced by coercion

    filter(diamonds, carat > 3)

    Error in filter(diamonds, carat > 3) : object 'carat' not found

Answer 1

Your issue is that tidyverse is not being loaded into your R session, and so when you call filter , it is from the stats package rather than dplyr. This is why it's good practice to use namespaces in R, like dplyr::filter , so you know exactly which function you are calling.

To fix the error loading tidyverse, update the rlang library:

update.packages()

And then try

dplyr::filter(mtcars, cyl == 8)