Is there something wrong with this Filter function code in R?-CodePudding

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Is there something wrong with this Filter function code in R?

Time：07-19

I am trying to filer the "ToothGrowth" dataset by "dose" of the "supp" in R but I am receiving the below mentioned error.

CODE:

install.packages("dplyr")
data("ToothGrowth")
View(ToothGrowth)
filtered_tg <- filter(ToothGrowth, dose==0.5)
View (filtered_tg)

ERROR:

Error in filter(ToothGrowth, dose == 0.5) : object 'dose' not found View (filtered_tg)

CodePudding user response：

You need library(dplyr) after install.packages("dplyr").