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User:YBG Information

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This is a bunch of non-talk stuff I'm moving off of my talk page. YBG ( talk) 06:18, 29 June 2016 (UTC)


Living POTUS &c

Roughly prioritized to-do list for my userspace draft (15:25, 16 November 2018 (UTC))

Implemented (and documented) at User:YBG/Living officeholders YBG ( talk) 04:36, 22 May 2019 (UTC)
  •  Done Implement |fmt= to allow alternate date formats
  •  Done Improved parameter counter
  •  Done Add check for subpage existance
  •  Done Add /doc subpage
  •  Done Implement as two alternatives: full-table template and table-row template
  •  Done Implement /Row2 alternative with Drdpw's format, making a list of design differences
  •  Done Implement /Row3 alternatives with vertical list only
  •  Done Implement /Row4 alternatives with vertical list additionally
  •  Done Implement /Row5 with starting/ending events in separate columns instead of separate rows
  • Doing... Implement checked boxus-p, checked boxusvp, checked boxaupm, checked boxnzpm, Question?ukpm
  • Announce at Talk:Living presidents of the United States
  • Seek comments on alternatives


Recent collaborations
    Status     My 1st edit Collaborating with Latest edit Discussion location
 Done 2017-02-29 DePiep et al 2017-03-05 User:YBG/sandbox, talk:Living Presidents of the United States/Archive 2 § Colorized list with
 Done 2016-11-23 The usual suspects 2017-01-31 talk:Living Presidents of the United States/Archive 2 §§  More format discussion​ and Request for comments on proposed changes
 Done 2016-10-22 Drdpw, Neve-selbert, GoodDay, JFG 2016-11-08 Talk:List of Presidents of the United States/Archive 8 §§  President Elect​ and Prior service
 Done 2016-07-27 2016-08-21 Talk:Periodic trends § Merge trends+law
 Done 2016-07-02 Zyxwv99 &al 2016-07-15 Talk:Dietary element § Article should be Dietary mineral
 Done 2016-07-08 Sandbh &al 2016-08-22 Talk:Heavy metal (chemical element) § FAC comments by YBG
2016-05-31 2016-07-11 Talk:Presbyterian Church in America § Two churches that have recently moved to PCA
 Done 2016-07-08 2016-07-18 Talk:American and British English spelling differences/Archive 4 § Map showing nations using either American or British English
c:commons:Deletion requests/File:American and British spelling differences.png
 Done 2016-06-01 2016-07-15 Talk:American and British English spelling differences/Archive 4 § "This article is written in American English"
 Done 2016-07-01 2016-07-01 Talk:List of proposed states of Australia § Bias around New Zealand becoming an Australian State
 Done 2016-06-25 2016-07-16 Wikipedia talk:WikiProject Elements/Archive 23 § Etymology templates
WP:Templates for discussion/Log/2016 July 8 § Chemical elements named after ...
Doing... 2016-06-27 DePiep ( talk · contribs) 2016-07-03 Wikipedia talk:WikiProject Elements/Archive 23 § Revised etymology article
Etymology of names of chemical elements § Table setup
 Done 2016-05-09 Golfeditor1 ( talk · contribs) 2016-08-21 User talk:YBG/Archive 3 § Golf editing

Notes to myself


Incomplete or recently complete

Useful WP stuff

This is a collection of useful wikipedia forms.


WP links are well described at Help:Link

  • [[Article name]]: ... a WP article
  • [[Article name|{text}]]: ... a WP article with alternate text
  • [[Talk:Article name]]: ... a talk page
  • [[Article name#Section]]: ... a section within an article
  • [[:Category:Category name]]: ... a WP category, e.g., Category:Indian hill stations
  • [[User:{User}]]: ... User page, e.g., User:YBG
  • [[User Talk:{User}]]: User talk page, e.g., User Talk:XYZ
  • [[Special:Contributions/{User}]]: User contributions, e.g., Special:Contributions/YBG
  • [http://{URL}]: ... any URL, e.g., [2]
  • [http://{URL} {text}]: ... any URL with alternate text, e.g., google

WP-related URL's are described in Help:URL

  • [{version}]: ... for a specific old version, e.g., [3]
  • [{version}]: ... for changes made by a specific version, e.g., [4]
  • [{version}]: ... for differences to the current version, e.g., [5]
  • {{diff|[prefix]:[page]|prev|[version]|label}}: ... for differences made by a specific version, e.g. this edit
  • [[Special:Diff/version-number]]: ... for differences introduced by a version, e.g., Special:Diff/650954321
  • [[Special:Diff/ver-1/ver-2]]: ... for differences between two versions, e.g., Special:Diff/646776217/650954321
  • [[Special:Permalink/version-number]]: ... for a specific version, e.g., Special:Permalink/660364853#Compare2b
  • Help:Special: ... for a list of other special pages

More syntax

wiki markup result
* Item 1
* Item 2
  • Item 1
  • Item 2
{{collapse top|Header}}
collapsed text
{{collapse bottom}}

collapsed text

<hr width=75%>

Templates &c.



  • Do not use lists if a passage reads easily using plain paragraphs. MOS:LISTBULLET
  • Use straight quotes and apostrophes, not the curly typographic form. MOS:STRAIGHT 03:05, 26 August 2015 (UTC)


Commas in numbers

(This is a draft; I'm not sure where to post it

  • On the MOS talk page -- but this avoids reaching a local consensus first
  • On the project talk pages -- but then India, Pakistan or both?

Should South Asian articles insert commas for thousands and millions (12,345,678) or for thousands, lakhs and crores (1,23,45,678)? MOS:COMMONALITY seems to lean to millions but MOS:TIES to lakhs/crores. MOS:TIES is quite explicit on the corresponding question about date formatting, but WP:NUMERAL doesn't seem to be as helpful. It seems to say that if commas are used for lakhs/crores, the first instance should include a parenthesized explanation commas for millions. This seems unhelpful, particularly for tables and infoboxes.

I am wondering if any South Asian projects ( WP:Pakistan, WP:India, etc) have developed a project style that speaks to this. If not, I think it would be good to develop a consensus within these projects and then perhaps make the Manual of Style as explicit in this question as it is for dates.

Here are the relevant sections of from WP:MOS:

WP:Manual of Style#Opportunities for commonality ( MOS:COMMONALITY)
'tens of millions' is preferable to crore ( Indian English).
WP:Manual of Style#Strong national ties to a topic ( MOS:TIES)
An article on a topic that has strong ties to a particular English-speaking nation should use the English of that nation.
WP:Manual of Style#Internal consistency ( WP:CONSISTENCY)
While Wikipedia does not favor any national variety of English, within a given article the conventions of one particular variety should be followed consistently.
WP:Manual of Style/Dates and numbers#Strong national ties to a topic ( MOS:TIES)
Articles on topics with strong ties to a particular English-speaking country should generally use the more common date format for that nation.
WP:Manual of Style/Dates and numbers#Numbers as figures or words ( WP:NUMERAL)
  • Sometimes, the variety of English used in an article may call for the use of a numbering system other than the Western thousands-based system. For example, the South Asian numbering system is conventionally used in South Asian English. In those situations, link the first spelled-out instance of each quantity (e.g. [[crore]], which yields crore). (If no instances are spelled out, provide a note after the first instance directing the reader to the article about the numbering system.) Also, provide a conversion to Western numbers for the first instance of each quantity, and provide conversions for subsequent instances if they do not overwhelm the content of the article. For example, write three crore (thirty million). Similarly, if you write 3,00,00,000, also write (30,000,000) or (30000000). (Note that the variety of English does not uniquely determine the method of numbering in an article. Other considerations, such as conventions used in mathematics, science and engineering, may also apply, and the choice and order of formats and conversions is a matter of editorial discretion and consensus.)
WP:Manual of Style/Dates and numbers#Delimiting (grouping of digits)
  • Numbers with five or more digits to the left of the decimal point (i.e. 10,000 or greater) should be delimited into groups so they can be easily parsed, such as by using a comma (,) every three digits (e.g. 12,200, 255,200, 8,274,527). A full stop (.) should not be used to separate thousands (e.g. 12.200, 255.200) to avoid confusion with the decimal point.
  • The style of delimiting numbers must be consistent throughout an article.

I plan to invite members of those projects to contribute to this discussion. YBG ( talk) 00:59, 1 June 2013 (UTC)

Criteria for categorization (the so-called "YBG rules")

These criteria were originally summarized as a part of the long discussion about categorizing nonmetals, but I believe they are just as easily applied to any categorization effort.

I first added these three points in April 2013 in a discussion later archived here:

1. Clear. The criterion for division should be easily explained
2. Unambiguous. It should be (relatively) obvious which category each element fits into
3. Meaningful. The categories should have significance more than just dividing for the sake of dividing.
There should be enough within-group similarity and enough between-group dissimilarity so that each group could be the subject of a separate encyclopedia article

In November 2013, Sandbh (in a discussion archived here) named these the 'YBG rules', but I think they were really just summarizing the thoughts of others.

Other criteria mentioned in that discussion, not previously summarized, include these:

4. Referenced. Categories and their names are supported by reliable sources
5. Specific. Catch-all, none-of-the-above terms like 'Other X' are avoided (unless properties are not sufficiently known)
6. Unique. The categories are mutually exclusive (a bit stronger than Unambiguous)
7. Complete. The categories are jointly exhaustive (a bit stronger than Specific)’

I am writing this here to have it for reference and perhaps application in other areas. YBG ( talk) 07:47, 6 December 2013 (UTC)

Added links to original edits. YBG ( talk) 07:23, 22 August 2016 (UTC)

Grid example

a0 a1 a2 a3
b0 b1 b2 b3
c0 c1 c2 c3
d0 d1 d2 d3
a0 a1 a2 a3
b0 b1 b2 b3

Poor man's interactivity


  1. You can try to answer the question without seeing any of the possible answers
  2. Click [show] to reveal the possible choices (like a multiple-choice test)
  3. Hover over the letter of your chosen answer to see if it is right and why or why not

Venn diagrams from Commons

Venn_00_.svg Venn_10_.svg Venn_01_.svg Venn_11_.svg

Periodic table with section links

A periodic table with section links
H  #H He #H
Li #H Be #H B  #H C  #H+e N  #H+e O  #H§ F  #H Ne #H
Na #H Mg #H Al #E Si #H P  #S+e S  #S+e Cl #H Ar #H
K  #E Ca #H Sc #H Ti #H V  #H Cr #top Mn #H Fe #E Co #H Ni #H Cu #H§ Zn #H§ Ga #H Ge #H As #H Se #H Br #H Kr #top
Rb #H Sr #H Y  #H Zr #H Nb #H Mo #H Tc #H§ Ru #H Rh #H Pd #H Ag #H Cd #H In #H Sn #E Sb #E Te #H I  #H Xe #H
Cs #H Ba #H 1 asterisk Hf #H Ta #H W  #top Re #H Os #H Ir #H Pt #top Au #E Hg #E Tl #H Pb #E Bi #H Po #H At #H Rn #H+e
Fr #H§ Ra #H 2 asterisks Rf #Nc Db #Nc Sg #H Bh #H§ Hs #H Mt #N Ds #N Rg #N Cn #N Uut #N Fl #N Uup #N Lv #N Uus #N Uuo #N
1 asterisk La #H Ce #H Pr #H Nd #H Pm #H§ Sm #H Eu #Hs Gd #H Tb #H Dy #H Ho #H Er #H Tm #H Yb #H Lu #H  
2 asterisks Ac #H Th #H Pa #H U  #D Np #D Pu #D Am #H Cm #H Bk #H Cf #H Es #H Fm #D Md #D No #D Lr #H  
Code Section name # Elements whose name/etymology is in this section (usually in addition to the lede)
#H History 75 elements: (The vast majority of the elements)
#N Naming 10 elements: 109:Mt, 110:Ds, 111:Rg, 112:Cn, 113:Uut, 114:Fl, 115:Uup, 116:Lv, 117:Uus, 118:Uuo
#E Etymology 8 elements: 13:Al, 19:K , 26:Fe, 50:Sn, 51:Sb, 79:Au, 80:Hg, 82:Pb
#D Discovery 6 elements: 92:U , 93:Np, 94:Pu, 100:Fm, 101:Md, 102:No
#H+e History and etymology 3 elements: 6:C , 7:N , 86:Rn
#S+e Spelling and etymology 2 elements: 15:P , 16:S
#Nc Naming controversy 2 elements: 104:Rf, 105:Db
#top (only in the lede) 4 elements: 24:Cr, 36:Kr, 74:W , 78:Pt
#H§ History subsection 7 elements:
8:O (Lavoisier's contribution)
29:Cu (Antiquity and Middle Ages)
30:Zn (Early studies and naming)
43:Tc (Official discovery and later history)
87:Fr (Perey's analysis)
107:Bh (Proposed names)
61:Pm (Discovery and synthesis of promethium metal)
#Hs History of study 1 element: 63:Eu

SQL Null

p q p OR q p AND q p = q
True True True True True
True False True False False
True Unknown True Unknown Unknown
False True True False False
False False False False True
False Unknown Unknown False Unknown
Unknown True True Unknown Unknown
Unknown False Unknown False Unknown
Unknown Unknown Unknown Unknown Unknown
(True dominates)
p OR q q
True False Unknown
p True True True True
False True False Unknown
Unknown True Unknown Unknown
(False dominates)
p AND q q
True False Unknown
p True True False Unknown
False False False False
Unknown Unknown False Unknown
(Unknown dominates)
p = q q
True False Unknown
p True True False Unknown
False False True Unknown
Unknown Unknown Unknown Unknown
p NOT p p IS True p IS NOT True p IS False p IS NOT False p IS Unknown p IS NOT Unknown
True False True False False True False True
False True False True True False False True
Unknown Unknown False True False True True False