How do I resolve error message for filtering toothgrowth?

I am on Google Professional Data Analytics course and in one of the online class, we have to analyse ToothGrowth dataset. However, I do not seem to have this dataset in R Studio Cloud. Does anyone know why is this so?

You need to load the dplyr package.

filtr_tg <- filter(ToothGrowth,dose==0.5)

Great! it worked. Thank you :slight_smile:
Why do I have to put library(dplyr) first before filtr_tg <- filter(ToothGrowth,dose==0.5) ?

The stats package in base R, which is loaded by default, has a different filter function. When you load the dplyr package, the filter from the stats package is masked and R will use dplyr's filter instead.

#> Attaching package: 'dplyr'
#> The following objects are masked from 'package:stats':
#>     filter, lag
#> The following objects are masked from 'package:base':
#>     intersect, setdiff, setequal, union

Created on 2022-09-24 with reprex v2.0.2

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