`dplyr` programming throws R CMD check warnings

[mhpob]

See example here: https://github.com/r-universe/mhpob/actions/runs/6935301215/job/18865316576#step:8:855

Looks like this comes from having bare variable names when programming with dplyr. Suggested fix is to use .data to call the data.

https://community.rstudio.com/t/how-to-solve-no-visible-binding-for-global-variable-note/28887/2

https://cran.r-project.org/web/packages/dplyr/vignettes/in-packages.html

https://cran.r-project.org/web/packages/dplyr/vignettes/programming.html

[mhpob]

This is also an issue with data.table programming. The data.table team suggests creating these variables at the top of the function, which seems like it may be a more dplyr/data.table-agnostic fix.

https://cran.r-project.org/web/packages/data.table/vignettes/datatable-importing.html

myfun_dt <- function(){
   V1 <- V2 <- V3 <- NULL

   DT[, V1 := 'blah']
   DT[, V2 := V1 + V3]
}

myfun_dplyr <- function(){
   V1 <- V2 <- V3 <- NULL

   DF |>
       mutate(V1 = 'blah',
                    V2 = V1 + V3)
}