stdlib feat: add C ndarray API and refactor for `stats/base/sdsnanmean`

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Resolves None

Description

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This pull request:

Adds C ndarray implementation for stats/base/sdsnanmean
Refactors stats/base/sdsnanmean
Adds C implementation section in README.md.

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This pull request:

resolves None

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@stdlib-js/reviewers

Jan 26 '25 09:01 0PrashantYadav0

/stdlib merge

Feb 02 '25 07:02 0PrashantYadav0

/stdlib merge

Feb 20 '25 07:02 0PrashantYadav0

/stdlib merge

Apr 14 '25 09:04 0PrashantYadav0

@0PrashantYadav0 Should this PR be closed out?

Jun 08 '25 09:06 kgryte

/stdlib-merge

Jun 09 '25 07:06 0PrashantYadav0

/stdlib-merge

@0PrashantYadav0, slash command not recognized. Please use /stdlib help to view available commands.

Jun 09 '25 07:06 stdlib-bot

/stdlib merge

Jun 09 '25 07:06 0PrashantYadav0

@kgryte This pr depend on Pull-4727. So we have to wait for pr-4727 to merge before opening this.

Jun 09 '25 07:06 0PrashantYadav0

@gururaj1512 Why we updated rand_double to rand_float.

Jun 10 '25 09:06 0PrashantYadav0

@gururaj1512 Why we updated rand_double to rand_float.

We generate array of single precision random numbers in single precision packages.

Jun 10 '25 10:06 gururaj1512

@gururaj151 Sorry, I just got a little confused there.

Jun 11 '25 07:06 0PrashantYadav0

/stdlib merge

Jul 27 '25 11:07 kgryte

@0PrashantYadav0 Mind addressing the CI failures in this PR?

Jul 27 '25 11:07 kgryte

Sure

Jul 27 '25 11:07 0PrashantYadav0

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/sdsnanmean	$\color{green}345/345$ $\color{green}+100.00\%$	$\color{green}13/13$ $\color{green}+100.00\%$	$\color{green}4/4$ $\color{green}+100.00\%$	$\color{green}345/345$ $\color{green}+100.00\%$

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

Jul 27 '25 14:07 stdlib-bot