testthat, circular, prevR, scales, fields, methods, move,
knitr, rmarkdown
testthat, circular, prevR, scales, fields, methods, move,
knitr, rmarkdown, sp, rgeos
testthat, circular, prevR, scales, fields, methods, move,
knitr, rmarkdown, sp
testthat, circular, prevR, scales, fields, methods, move,
knitr, rmarkdown, sf