I have to use this function:
test = (left_join (registerPers, pers, by = c ("RB030", "PB030")))

but Rstudio keeps giving me this error:
Error in left_join (registerPers, pers, by = c ("RB030", "PB030")):
could not find function "left_join"

R does not install the dplyr package for me, not even putting the "dependence = TRUE" option.

What should I do? pls help

The command is install.packages().

What is the error message you get? We need more information to help you.

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