feat: add `stats/incr/nanmmaape` #5581 by Rathodyashraj · Pull Request #9542 · stdlib-js/stdlib

Rathodyashraj · 2026-01-04T17:29:39Z

type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes. report:

task: lint_filenames status: passed
task: lint_editorconfig status: passed
task: lint_markdown status: passed
task: lint_package_json status: passed
task: lint_repl_help status: passed
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task: lint_javascript_cli status: na
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task: lint_r status: na
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task: lint_typescript_declarations status: passed
task: lint_typescript_tests status: passed
task: lint_license_headers status: passed ---

Resolves #5581.

Description

What is the purpose of this pull request?

This pull request:

adds a new package stats/incr/* namespace: @stdlib/stats/incr/nanmmaape.
This package is similar to @stdlib/stats/incr/stdev, except that it performs special handling of NaN values.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

[RFC]: add stats/incr/nanmmaape #5581

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No.

Other

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Read, understood, and followed the contributing guidelines.

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Planeshifter · 2026-01-13T19:51:18Z

+	var i;
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		f = incrmmaape( (i%5)+1 );


Same here - should be incrnanmmaape.

Suggested change

f = incrmmaape( (i%5)+1 );

f = incrnanmmaape( (i%5)+1 );

Planeshifter · 2026-01-13T19:51:19Z

+	var v;
+	var i;
+
+	acc = incrmmaape( 5 );


And here too.

Suggested change

acc = incrmmaape( 5 );

acc = incrnanmmaape( 5 );

Planeshifter · 2026-01-13T19:51:28Z

+	* If provided input values, the accumulator function returns an updated mean arctangent absolute percentage error. If not provided input values, the accumulator function returns the current value.
+	*
+	* @private
+	* @param {number} [f] - input  value


There's an extra space here - input value should be input value.

Suggested change

* @param {number} [f] - input value

* @param {number} [f] - input value

stdlib-bot · 2026-01-13T21:57:21Z

Coverage Report

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--- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: passed - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: na - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed ---

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Rathodyashraj · 2026-01-16T15:40:37Z

Thanks for the review !
I’ve corrected the function name to incrnanmmaape in the benchmark and fixed the documentation typo. Please let me know if anything else needs adjustment.

Rathodyashraj · 2026-02-25T19:11:55Z

Hi @Planeshifter

Are any further changes required to be addresses to able to merge this pr , if there are please let me know

Thanks.

Planeshifter · 2026-03-09T05:48:57Z

+
+-->
+
+# incrmmaape


This should be # incrnanmmaape — looks like it was copied from the base mmaape package and not updated.

Suggested change

# incrmmaape

# incrnanmmaape

Planeshifter · 2026-03-09T05:49:00Z

+{
+  "name": "@stdlib/stats/incr/nanmmaape",
+  "version": "0.0.0",
+  "description": "Compute a moving arctangent mean absolute percentage error (MAAPE) incrementally, ignoring NaN values.",


Word order: "moving arctangent mean absolute percentage error" should be "moving mean arctangent absolute percentage error" to match the rest of the package.

Suggested change

"description": "Compute a moving arctangent mean absolute percentage error (MAAPE) incrementally, ignoring NaN values.",

"description": "Compute a moving mean arctangent absolute percentage error (MAAPE) incrementally, ignoring NaN values.",

Planeshifter · 2026-03-09T06:28:03Z

/stdlib update-copyright-years

--- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: passed - task: lint_package_json status: na - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: na - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed ---

--- type: pre_commit_static_analysis_report description: Results of running static analysis checks when committing changes. report: - task: lint_filenames status: passed - task: lint_editorconfig status: passed - task: lint_markdown status: na - task: lint_package_json status: passed - task: lint_repl_help status: na - task: lint_javascript_src status: na - task: lint_javascript_cli status: na - task: lint_javascript_examples status: na - task: lint_javascript_tests status: na - task: lint_javascript_benchmarks status: na - task: lint_python status: na - task: lint_r status: na - task: lint_c_src status: na - task: lint_c_examples status: na - task: lint_c_benchmarks status: na - task: lint_c_tests_fixtures status: na - task: lint_shell status: na - task: lint_typescript_declarations status: passed - task: lint_typescript_tests status: na - task: lint_license_headers status: passed ---

Rathodyashraj · 2026-03-09T08:01:08Z

@Planeshifter all the changes have been done

stdlib-bot added Statistics Issue or pull request related to statistical functionality. First-time Contributor A pull request from a contributor who has never previously committed to the project repository. Good First PR A pull request resolving a Good First Issue. labels Jan 4, 2026

Rathodyashraj marked this pull request as ready for review January 4, 2026 17:29

stdlib-bot added the Needs Review A pull request which needs code review. label Jan 4, 2026

Planeshifter changed the title ~~feat: add stats/incr/nanmmaape #5581~~ feat: add stats/incr/nanmmaape #5581 Jan 5, 2026

Planeshifter self-requested a review January 13, 2026 19:46

Planeshifter requested changes Jan 13, 2026

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Planeshifter added Needs Changes Pull request which needs changes before being merged. and removed Needs Review A pull request which needs code review. labels Jan 14, 2026

Rathodyashraj added 3 commits January 16, 2026 19:56

Rathodyashraj force-pushed the local branch from d7f6947 to f47d1d5 Compare January 16, 2026 15:36

Rathodyashraj requested a review from Planeshifter January 19, 2026 16:26

stdlib-bot added the Needs Review A pull request which needs code review. label Jan 19, 2026

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chore: update copyright years

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Rathodyashraj and others added 3 commits March 9, 2026 13:25

Merge branch 'stdlib-js:develop' into local

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stdlib-bot added the Needs Review A pull request which needs code review. label Mar 10, 2026

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	* @param {number} [f] - input value
	* @param {number} [f] - input value

	"description": "Compute a moving arctangent mean absolute percentage error (MAAPE) incrementally, ignoring NaN values.",
	"description": "Compute a moving mean arctangent absolute percentage error (MAAPE) incrementally, ignoring NaN values.",


		-->

		# incrmmaape

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