Filter using dplyr

Question

How to filter rows based on values for an entire row? Is there a way to filter row based on condition for an entire row or any one of the column?

Answer 1

@Sagar, use filter followed by condition for each column. But this would not be the best method for a large data frame with more columns.  Another way is to use filter_all( ).

Ex: filter_all(mtcars, all_vars(. > 150))

filter_all function applies the same condition to all columns and returns rows that satisfy the condition.

To filter rows if particular columns pass the condition use filter_at( ). You can specify the column/s using starts_with,ends_with,contains, matches, etc

Ex: filter_at(mtcars, vars(starts_with("d")), any_vars((. %% 2) == 0))