I want to search in the variable perdl, special characters (it is a variable with names). But I don't understand how to look for them, it only looks for the points since I want all the special characters
example:
analysis <- descrip%>%
select (anali1, year2, perdl)%>%
filter (grepl ("\.", perdl))
if (nrow (analysis)> 0) {
saveExcel ('analysis', 'records with special characters', analysis)}