Algorithms for calculating variance: Revision history

29 April 2025

• curprev 14:3214:32, 29 April 2025 139.47.111.8 talk 31,427 bytes +10 →Naïve algorithm undo
• curprev 14:3014:30, 29 April 2025 139.47.111.8 talk 31,417 bytes +7 →Naïve algorithm undo

18 January 2025

• curprev 18:0518:05, 18 January 2025 Azmisov talk contribs 31,410 bytes +81 Revert prior edit which removed reliability weights calculation; Bessel correction for reliability weights are well known and defined, and sources have been included undo Tag: Undo

12 January 2025

• curprev 05:0905:09, 12 January 2025 Citation bot talk contribs 31,329 bytes −12 Removed parameters. | Use this bot. Report bugs. | Suggested by Dominic3203 | Linked from User:Talgalili/sandbox | #UCB_webform_linked 42/2730 undo

23 December 2024

• curprev 11:1111:11, 23 December 2024 Graham87 talk contribs m 31,341 bytes 0 6 revisions imported: import old edits from "Variance/Algorithm" in the August 2001 database dump undo
• curprev 11:0511:05, 23 December 2024 Graham87 talk contribs m 31,341 bytes 0 1 revision imported: import old edit from nost:Algorithms for calculating variance undo

24 October 2024

• curprev 07:2307:23, 24 October 2024 2a02:3100:4763:5b00:bd51:9f82:d847:6814 talk 31,341 bytes −81 →Weighted incremental algorithm: "reliability weights" does not even appear to be well-defined? Refer to the "further information" page only, to not have different versions. undo Tags: Reverted Mobile edit Mobile web edit
• curprev 07:1607:16, 24 October 2024 2a02:3100:4763:5b00:bd51:9f82:d847:6814 talk 31,422 bytes +186 stack exchange is not a reliable source. read West 1979 and the linked Weighted_arithmetic_mean 1252910133 by Svalorzen (talk) undo Tags: Mobile edit Mobile web edit

23 October 2024

• curprev 14:0014:00, 23 October 2024 Svalorzen talk contribs 31,236 bytes −182 The previously reported algorithm for reliability weights was wrong, as was the variance measure reported in the previously cited paper. You can see discussion about this in the stackexchange reference added, where the paper's approach (called B) is specifically pointed out as wrong. The new code for reliability weights correctly implements approach C in the same post, which is correct. undo

13 September 2024

• curprev 05:1105:11, 13 September 2024 Softlavender talk contribs m 31,418 bytes −37 Reverted edit by Akaibu (talk) to last version by 212.185.66.16 undo Tag: Rollback
• curprev 04:1204:12, 13 September 2024 Akaibu talk contribs 31,455 bytes +37 Added {{Lead rewrite}} tag undo Tags: Twinkle Reverted

14 August 2024

• curprev 17:2317:23, 14 August 2024 212.185.66.16 talk 31,418 bytes −5 No edit summary undo Tag: Manual revert
• curprev 17:1517:15, 14 August 2024 212.185.66.16 talk 31,423 bytes +5 No edit summary undo Tag: Reverted

12 August 2024

• curprev 17:5117:51, 12 August 2024 Antaltamas talk contribs m 31,418 bytes −38 Removed "original research" template. The statements are from the referenced article, so it is clear that they are not original research. undo

11 March 2024

• curprev 20:4120:41, 11 March 2024 Isaidnoway talk contribs 31,456 bytes +21 Clean up Category:CS1 errors: external links not allowed in parameter undo

23 January 2024

• curprev 02:1802:18, 23 January 2024 Citation bot talk contribs 31,435 bytes −52 Alter: doi, id. Added isbn. Removed proxy/dead URL that duplicated identifier. Removed parameters. | Use this bot. Report bugs. | #UCB_CommandLine undo

28 November 2023

• curprev 07:3307:33, 28 November 2023 Hellacioussatyr talk contribs 31,487 bytes −2 →Two-pass algorithm: list not necessary for comprehension undo Tags: Mobile edit Mobile web edit Advanced mobile edit

19 September 2023

• curprev 14:2514:25, 19 September 2023 Sollyucko talk contribs 31,489 bytes +566 →References: fixing some citations, including dead and some missing links undo Tag: Visual edit

31 July 2023

• curprev 13:4313:43, 31 July 2023 23.233.1.237 talk 30,923 bytes +10 →Welford's online algorithm: Switch Python syntax to snake_case undo

20 March 2023

• curprev 16:0016:00, 20 March 2023 AnomieBOT talk contribs m 30,913 bytes +16 Dating maintenance tags: {{Cn}} undo
• curprev 14:0014:00, 20 March 2023 Natchouf talk contribs 30,897 bytes +7 →Welford's online algorithm: insert citation needed for the numerical instability. I don't see why this should be instable, at least not more than the mean formula. undo Tag: Visual edit: Switched

28 January 2023

• curprev 23:1023:10, 28 January 2023 OAbot talk contribs m 30,890 bytes +17 Open access bot: doi added to citation with #oabot. undo

22 January 2023

• curprev 17:3117:31, 22 January 2023 Frap talk contribs m 30,873 bytes −4 →Higher-order statistics undo
• curprev 17:3017:30, 22 January 2023 Frap talk contribs m 30,877 bytes +11 Format code (style Black) undo

18 January 2023

• curprev 23:0323:03, 18 January 2023 Rzvhkon talk contribs m 30,866 bytes +22 Fix broken link to "incremental computing" undo

9 October 2022

• curprev 15:4915:49, 9 October 2022 Rlink2 talk contribs m 30,844 bytes +304 Adding archives WP:LINKROT undo Tag: AWB

2 July 2022

• curprev 19:3319:33, 2 July 2022 WhyYouAskMe talk contribs 30,540 bytes +2 →Computing shifted data: n is integer not float duh undo
• curprev 19:2919:29, 2 July 2022 WhyYouAskMe talk contribs 30,538 bytes −22 →Covariance: Python code is more pythonic now. undo
• curprev 19:1919:19, 2 July 2022 WhyYouAskMe talk contribs 30,560 bytes −4 →Higher-order statistics: Python code is more pythonic now. undo
• curprev 19:1719:17, 2 July 2022 WhyYouAskMe talk contribs 30,564 bytes −1 →Weighted incremental algorithm: Python code is more pythonic now. undo
• curprev 19:1519:15, 2 July 2022 WhyYouAskMe talk contribs 30,565 bytes −32 →Computing shifted data: Python code is more pythonic now. undo
• curprev 11:4111:41, 2 July 2022 WhyYouAskMe talk contribs 30,597 bytes −88 →Two-pass algorithm: For a python function, this was badly written... undo

29 May 2022

• curprev 08:2308:23, 29 May 2022 Hellacioussatyr talk contribs 30,685 bytes +25 No edit summary undo Tag: 2017 wikitext editor

19 April 2022

• curprev 10:1510:15, 19 April 2022 46.239.81.9 talk 30,660 bytes 0 →Naïve algorithm undo

13 February 2022

• curprev 04:0504:05, 13 February 2022 216.169.17.236 talk 30,660 bytes −1 →Naïve algorithm: No major style guide (MLA, Oxford, CMS) permits this usage. All indicate that a colon must be preceded by an independent clause. undo Tags: Mobile edit Mobile web edit

31 January 2022

• curprev 18:5718:57, 31 January 2022 Qwerfjkl (bot) talk contribs m 30,661 bytes 0 Capitalising short description "important algorithms in numerical statistics" per WP:SDFORMAT (via Bandersnatch) undo

13 January 2022

• curprev 02:1202:12, 13 January 2022 Rlink2 talk contribs m 30,661 bytes +73 →Welford's online algorithm: Fixing bare references Wikipedia:Bare_URLs undo Tag: AWB

8 January 2022

• curprev 01:1201:12, 8 January 2022 Retimuko talk contribs 30,588 bytes −105 Undid revision 1064323655 by 47.17.117.243 (talk) undo Tag: Undo

7 January 2022

• curprev 19:4119:41, 7 January 2022 47.17.117.243 talk 30,693 bytes +105 →See also undo Tag: Reverted

19 November 2021

• curprev 20:4120:41, 19 November 2021 Taylor Riastradh Campbell talk contribs 30,588 bytes +5 →Naïve algorithm: Link catastrophic cancellation directly. undo

4 October 2021

• curprev 17:3217:32, 4 October 2021 76.105.117.241 talk 30,583 bytes −51 →Weighted incremental algorithm: Remove note about using "zip" which is specific to Python. This section is intended to give the pseudo-code of the algorithm, and Python's syntax is mostly interchangeable with pseudo-code. This "zip" function is specific to Python, however, which makes this less "pseudo-code" and more Python-specific. undo

21 September 2021

• curprev 00:2200:22, 21 September 2021 2620:10d:c090:400::5:c197 talk 30,634 bytes +222 →Welford's online algorithm: Clarifying nomenclature of types of variance and adding definitions for extra clarity undo

23 July 2021

• curprev 18:2418:24, 23 July 2021 Maneesh talk contribs 30,412 bytes −87 →Naïve algorithm: Not clear in which way algorithm can be improved or what "assumed mean" really means in this context. Quick searching doesn't yield an obvious answer that can be cited. undo

22 July 2021

• curprev 07:5007:50, 22 July 2021 2a02:1210:6408:4600:6250:a1f6:315a:333e talk 30,499 bytes +5 →Computing shifted data: use sigma^2 for variance undo

21 April 2021

• curprev 07:3007:30, 21 April 2021 InternetArchiveBot talk contribs 30,494 bytes +73 Rescuing 0 sources and tagging 1 as dead.) #IABot (v2.0.8 undo

15 April 2021

• curprev 05:1305:13, 15 April 2021 Lollipoplollipoplollipop talk contribs m 30,421 bytes +23 No edit summary undo Tag: 2017 wikitext editor

12 April 2021

• curprev 10:1510:15, 12 April 2021 160.226.142.3 talk 30,398 bytes −1 →Welford's online algorithm undo

9 April 2021

• curprev 14:4414:44, 9 April 2021 Molobok talk contribs 30,399 bytes 0 →Naïve algorithm: replaced divisor N^3 with N^2 for square average undo Tag: Manual revert

23 March 2021

• curprev 21:4821:48, 23 March 2021 75.69.151.152 talk 30,399 bytes 0 →Naïve algorithm undo Tag: Reverted

8 December 2020

• curprev 11:4611:46, 8 December 2020 2a04:ee41:4:a257:f4a2:e32a:1e81:76ed talk 30,399 bytes +91 →Higher-order statistics: This algorithm can result in division by 0. Added a comment to note that. undo Tag: Visual edit