A variety of linters are available in lintr. The most popular ones are readily
accessible through default_linters().
Within a lint() function call, the linters in use are initialized with the provided
arguments and fed with the source file (provided by get_source_expressions()).
A data frame of all available linters can be retrieved using available_linters().
Documentation for linters is structured into tags to allow for easier discovery;
see also available_tags().
The following tags exist:
best_practices (53 linters)
common_mistakes (8 linters)
configurable (34 linters)
consistency (22 linters)
correctness (7 linters)
default (25 linters)
deprecated (8 linters)
efficiency (25 linters)
executing (5 linters)
package_development (14 linters)
pkg_testthat (12 linters)
readability (54 linters)
robustness (14 linters)
style (38 linters)
The following linters exist:
absolute_path_linter (tags: best_practices, configurable, robustness)
any_duplicated_linter (tags: best_practices, efficiency)
any_is_na_linter (tags: best_practices, efficiency)
assignment_linter (tags: configurable, consistency, default, style)
backport_linter (tags: configurable, package_development, robustness)
boolean_arithmetic_linter (tags: best_practices, efficiency, readability)
brace_linter (tags: configurable, default, readability, style)
class_equals_linter (tags: best_practices, consistency, robustness)
commas_linter (tags: configurable, default, readability, style)
commented_code_linter (tags: best_practices, default, readability, style)
condition_message_linter (tags: best_practices, consistency)
conjunct_test_linter (tags: best_practices, configurable, package_development, pkg_testthat, readability)
consecutive_assertion_linter (tags: consistency, readability, style)
cyclocomp_linter (tags: best_practices, configurable, default, readability, style)
duplicate_argument_linter (tags: common_mistakes, configurable, correctness)
empty_assignment_linter (tags: best_practices, readability)
equals_na_linter (tags: common_mistakes, correctness, default, robustness)
expect_comparison_linter (tags: best_practices, package_development, pkg_testthat)
expect_identical_linter (tags: package_development, pkg_testthat)
expect_length_linter (tags: best_practices, package_development, pkg_testthat, readability)
expect_named_linter (tags: best_practices, package_development, pkg_testthat, readability)
expect_not_linter (tags: best_practices, package_development, pkg_testthat, readability)
expect_null_linter (tags: best_practices, package_development, pkg_testthat)
expect_s3_class_linter (tags: best_practices, package_development, pkg_testthat)
expect_s4_class_linter (tags: best_practices, package_development, pkg_testthat)
expect_true_false_linter (tags: best_practices, package_development, pkg_testthat, readability)
expect_type_linter (tags: best_practices, package_development, pkg_testthat)
extraction_operator_linter (tags: best_practices, style)
fixed_regex_linter (tags: best_practices, configurable, efficiency, readability)
for_loop_index_linter (tags: best_practices, readability, robustness)
function_argument_linter (tags: best_practices, consistency, style)
function_left_parentheses_linter (tags: default, readability, style)
function_return_linter (tags: best_practices, readability)
if_not_else_linter (tags: configurable, consistency, readability)
ifelse_censor_linter (tags: best_practices, efficiency)
implicit_assignment_linter (tags: best_practices, configurable, readability, style)
implicit_integer_linter (tags: best_practices, configurable, consistency, style)
indentation_linter (tags: configurable, default, readability, style)
infix_spaces_linter (tags: configurable, default, readability, style)
inner_combine_linter (tags: consistency, efficiency, readability)
is_numeric_linter (tags: best_practices, consistency, readability)
keyword_quote_linter (tags: consistency, readability, style)
length_levels_linter (tags: best_practices, consistency, readability)
length_test_linter (tags: common_mistakes, efficiency)
lengths_linter (tags: best_practices, efficiency, readability)
library_call_linter (tags: best_practices, configurable, readability, style)
line_length_linter (tags: configurable, default, readability, style)
literal_coercion_linter (tags: best_practices, consistency, efficiency)
matrix_apply_linter (tags: efficiency, readability)
missing_argument_linter (tags: common_mistakes, configurable, correctness)
missing_package_linter (tags: common_mistakes, robustness)
namespace_linter (tags: configurable, correctness, executing, robustness)
nested_ifelse_linter (tags: efficiency, readability)
nonportable_path_linter (tags: best_practices, configurable, robustness)
numeric_leading_zero_linter (tags: consistency, readability, style)
object_length_linter (tags: configurable, default, executing, readability, style)
object_name_linter (tags: configurable, consistency, default, executing, style)
object_usage_linter (tags: configurable, correctness, default, executing, readability, style)
outer_negation_linter (tags: best_practices, efficiency, readability)
package_hooks_linter (tags: correctness, package_development, style)
paren_body_linter (tags: default, readability, style)
paste_linter (tags: best_practices, configurable, consistency)
pipe_call_linter (tags: readability, style)
pipe_consistency_linter (tags: configurable, readability, style)
pipe_continuation_linter (tags: default, readability, style)
quotes_linter (tags: configurable, consistency, default, readability, style)
redundant_equals_linter (tags: best_practices, common_mistakes, efficiency, readability)
redundant_ifelse_linter (tags: best_practices, configurable, consistency, efficiency)
regex_subset_linter (tags: best_practices, efficiency)
repeat_linter (tags: readability, style)
routine_registration_linter (tags: best_practices, efficiency, robustness)
scalar_in_linter (tags: best_practices, consistency, efficiency, readability)
semicolon_linter (tags: configurable, default, readability, style)
seq_linter (tags: best_practices, consistency, default, efficiency, robustness)
sort_linter (tags: best_practices, efficiency, readability)
spaces_inside_linter (tags: default, readability, style)
spaces_left_parentheses_linter (tags: default, readability, style)
sprintf_linter (tags: common_mistakes, correctness)
string_boundary_linter (tags: configurable, efficiency, readability)
strings_as_factors_linter (tags: robustness)
system_file_linter (tags: best_practices, consistency, readability)
T_and_F_symbol_linter (tags: best_practices, consistency, default, readability, robustness, style)
todo_comment_linter (tags: configurable, style)
trailing_blank_lines_linter (tags: default, style)
trailing_whitespace_linter (tags: configurable, default, style)
undesirable_function_linter (tags: best_practices, configurable, efficiency, robustness, style)
undesirable_operator_linter (tags: best_practices, configurable, efficiency, robustness, style)
unnecessary_concatenation_linter (tags: configurable, efficiency, readability, style)
unnecessary_lambda_linter (tags: best_practices, efficiency, readability)
unnecessary_nested_if_linter (tags: best_practices, readability)
unnecessary_placeholder_linter (tags: best_practices, readability)
unreachable_code_linter (tags: best_practices, readability)
unused_import_linter (tags: best_practices, common_mistakes, configurable, executing)
vector_logic_linter (tags: best_practices, default, efficiency)
whitespace_linter (tags: consistency, default, style)
yoda_test_linter (tags: best_practices, package_development, pkg_testthat, readability)