docs: replace manual for loop in examples

[hrshya]

Resolves none .

Description

What is the purpose of this pull request?

This pull request:

• replaces manual for loop in examples for stats/base/dists/gamma/* packages.

Related Issues

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This pull request:

• resolves no related issues.

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No.

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Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

---

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[stdlib-bot]

PR Commit Message

docs: replace manual `for` loop in examples

PR-URL: https://github.com/stdlib-js/stdlib/pull/8019

Reviewed-by: Philipp Burckhardt <[email protected]>

Please review the above commit message and make any necessary adjustments.

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/gamma/cdf	$\color{green}314/314$ $\color{green}+100.00\%$	$\color{green}33/33$ $\color{green}+100.00\%$	$\color{green}4/4$ $\color{green}+100.00\%$	$\color{green}314/314$ $\color{green}+100.00\%$
stats/base/dists/gamma/entropy	$\color{green}196/196$ $\color{green}+100.00\%$	$\color{green}8/8$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}196/196$ $\color{green}+100.00\%$
stats/base/dists/gamma/kurtosis	$\color{green}195/195$ $\color{green}+100.00\%$	$\color{green}10/10$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}195/195$ $\color{green}+100.00\%$
stats/base/dists/gamma/logcdf	$\color{green}289/289$ $\color{green}+100.00\%$	$\color{green}19/19$ $\color{green}+100.00\%$	$\color{green}4/4$ $\color{green}+100.00\%$	$\color{green}289/289$ $\color{green}+100.00\%$
stats/base/dists/gamma/logpdf	$\color{red}494/546$ $\color{green}+90.48\%$	$\color{red}40/49$ $\color{green}+81.63\%$	$\color{green}6/6$ $\color{green}+100.00\%$	$\color{red}494/546$ $\color{green}+90.48\%$
stats/base/dists/gamma/mean	$\color{green}185/185$ $\color{green}+100.00\%$	$\color{green}8/8$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}185/185$ $\color{green}+100.00\%$

The above coverage report was generated for the changes in this PR.