User:Dpleibovitz/sandbox/List of numbered classification classes

This is a list of alphanumerically numbered classification classes (using well known collection concepts), e.g., "Group 1", "Group 2", "Class A", "Class B". For an entry to appear in this list, it must be part of a classification scheme, i.e., it must produce at least two numbered class categories. These become informal Category:Equivalence classes.

Alphanumeric numbering can imply an ordering (or rank), possibly arranged hierarchically, or it can be an arbitrary nominal number. These are also indicated. When letters are used in roman numbering schemes, they are sorted numerically, otherwise, alphabetically.

Summary

All numbered classifications

Classification Systems and their Numbered Equivalence classes by Level of Measurement (LoM) and Collection Class

Classification Area	Classification System	LoM	Collection Class	Numbered Equivalence Classes	Notes
Cabling	Structured	Ordinal	Cat	1, 2, 3, 4, 5/5e, 6/6a, 7/7a & 8/8.1/8.2	Unshielded and shielded twisted pair electrical cabling standards
Pandemic	Severity Index	Ordinal	Category	1, 2, 3, 4 & 5	severity index
Protected area	IUCN	Ordinal	Category	Ia, Ib, II, III, IV, V & VI	level (not clear what this suggests ordinal wise - funding? Should it be nominal?)
Earthquake, Intensity (local)	China	Ordinal	Degree	I, II, III, IV, V, VI, VII, VIII, IX, X, XI & XII	liedu (Chinese: 烈度; pinyin: lièdù, literally "degrees of violence")
	European		Degree	I, II, III, IV, V, VI, VII, VIII, IX, X, XI & XII
Snow impact	Northeast	Ordinal	Category	1, 2, 3, 4 & 5	Storms by Category
	Regional			1, 2, 3, 4 & 5
Wind (tropical cyclones)	Saffir–Simpson	Ordinal	Category	1, 2, 3, 4, 5 & "6"	Saffir–Simpson scale (intensity)
	Australian			1, 2, 3, 4 & 5
Wind	Beaufort	Ordinal	Number	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
Burn	Burn	Ordinal	Degree	1st, 2nd, 3rd & 4th	Traditional?
Mineral	Classification of minerals	Nominal	Category	01, 02, 03, 04, 05, 06, 07, 08, 09 & 10	Category or class?
Education Grading	China	Ordinal	Grade	A, B, C, D & F	85+ (Excellent); 75-84 (Good); 64-74 (Average); 60-63; (Pass); 0-59 (Failure)
	University of Ottawa			A, B, C, D, E & F	80+; 70-79; 60-69; 50-59; 40-40; 0-39

All equivalence classes

Classification Systems with their Numbered Equivalence classes by Collection Class and Level of Measurement

Classification Area	Classification System	LoM	Collection Class	Numbered Equivalence Classes	Description
Cabling	Structured	Ordinal	Cat	1	1 MHz, one unshielded twisted pair, voice-grade copper, for telephone; on-premises wiring
				2	4 MHz, four unshielded twisted pairs, for telephone and data communications
				3	16 MHz, unshielded twisted pair, station wire (copper), for telephone
				4	20 MHz, four unshielded twisted pairs
				5/5e	100 MHz
				6/6a	250 MHz
				7/7a	600MHz/1000MHz; fully shielded
				8/8.1/8.2	1600-2000 MHz; in development
Pandemic	Severity Index	Ordinal	Category	1	case-fatality ratio < 0.1%, e.g., seasonal flu and Swine Flu
				2	case-fatality ratio: 0.1–0.5%, e.g., Asian flu and Hong Kong flu
				3	case-fatality ratio: 0.5–1%
				4	case-fatality ratio: 1.0–2.0%
				5	case-fatality ratio> 2.0%, e.g., Spanish flu
Protected area	IUCN	Ordinal	Category	Ia	Strict Nature Reserve
				Ib	Wilderness Area
				II	National Park
				III	Natural Monument or Feature
				IV	Habitat/Species Management Area
				V	Protected Landscape/Seascape
				VI	with sustainable use of natural resources
Earthquake, Intensity (local)	China	Ordinal	Degree	I	Insensible
				II	Sensible by very few still indoor people
				III	Sensible by a few still indoor people
				IV	Sensible by most people indoors, a few people outdoors; a few wake up from sleep
				V	Commonly sensible by people indoors, sensible by most people outdoors; most wake up from sleep
				VI	Most unable to stand stably, a few scared to running outdoors
				VII	Majority scared to running outdoors, sensible by bicycle riders and people in moving motor vehicles
				VIII	Most swing about, difficult to walk
				IX	Moving people fall
				X	Bicycle riders may fall; people in unstable state may fall away; sense of being thrown up
				XI	Most collapse
				XII	Drastic change in landscape, mountains, and rivers
	European		Degree	I	Not felt
				II	Scarcely felt
				III	Weak
				IV	Largely observed
				V	Strong
				VI	Slightly damaging
				VII	Damaging
				VIII	Heavily damaging
				IX	Destructive
				X	Very destructive
				XI	Devastating
				XII	Completely devastating
Snow impact	Northeast	Ordinal	Category	1	Notable, NESIS: 1 — 2.499
				2	Significant, NESIS: 2.5 — 3.99
				3	Major, NESIS: 4 — 5.99
				4	Crippling, NESIS: 6 — 9.99
				5	Extreme, NESIS: 10.0+
	Regional			1	Notable, RSI: 1–3
				2	Significant, RSI: 3–6
				3	Major, RSI: 6–10
				4	Crippling, RSI: 10–18
				5	Extreme, RSI: 18.0+
Wind (tropical cyclones)	Saffir–Simpson	Ordinal	Category	1	wind speeds of 64–82 kn
				2	wind speeds of 83–95 kn
				3	wind speeds of 96–112 kn; "Major hurricane"
				4	wind speeds of 113–136 kn
				5	wind speed >= 137 kn
				"6"	wind speed >= 151 or 156 kn
	Australian			1	wind speeds of 34–47 kn
				2	wind speeds of 48–63 kn
				3	wind speeds of 64–85 kn; "Severe tropical cyclone"
				4	wind speeds of 86–110 kn
				5	wind speed >= 110 kn
Wind	Beaufort	Scale?	Number	0	Calm
				1	Light air
				2	Light breeze
				3	Gentle breeze
				4	Moderate breeze
				5	Fresh breeze
				6	Strong breeze
				7	High wind, moderate gale, near gale
				8	Gale, fresh gale
				9	Strong/severe gale
				10	Storm, whole gale
				11	Violent storm
				12	Hurricane force
Burn	Burn	Ordinal	Degree	1st	Superficial (epidermis); healing in 5-10 days
				2nd	Superficial partial thickness (papillary dermis)/Deep partial thickness (reticular dermis); healing in 2-3/3-8 weeks
				3rd	Full thickness (entire dermis); healing prolonged (months) & incomplete
				4th	Skin, fat, muscle & bone; requires excision
Mineral	Classification of minerals	Nominal	Category	01	Elements: Metals and Alloys, Carbides, Silicides, Nitrides, Phosphides
				02	Sulfides, Sulfosalts, Sulfarsenates, Sulfantimonates
				03	Halogenides, Oxyhalides, Hydroxyhalides
				04	Oxides and Hydroxides, [5,6] Vanadates, Arsenites, Antimonites, Bismuthites, Sulfites, Iodates
				05	Carbonates and Nitrates
				06	Borates
				07	Sulfates, Selenates, Chromates, Molybdates, Wolframates, Niobates
				08	Phosphates, Arsenates, Vanadates, Polyvanadates
				09	Silicates, Germanates
				10	Organic Compounds
Education Grading	China	Ordinal	Grade	A	85+; Excellent
				B	75-84; Good
				C	64-74; Average
				D	60-63; Pass
				F	0-59; Failure
	University of Ottawa			A	80+
				B	70-79
				C	60-69
				D	50-59
				E	40-40
				F	0-39

For individual collections

Kinds of Groupings - weak Equivalence classes

Category	Class	Kind	Group	Type	Tier	Level
1, 2, 3, ... A, B, C, ... I, V, X, ...	1, 2, 3, ... A, B, C, ... I, V, X, ...	1st, 2nd, 3rd, ...	1, 2, 3, ... A, B, C, ... I, V, X, ...	1, 2, 3, ... A, B, C, ... I, V, X, ...	1, 2, 3, ... A, B, C, ... I, V, X, ...	1, 2, 3, ... A, B, C, ... I, V, X, ...

Classification Area

This is the general area/topic being classified, possibly under multiple classification systems.

Level of Measurement (LoM)

Main article: Level of measurement

Note that this is a graded/Ordinal scale of increasing mathematical uses. Would like to call this "measurement class" as WP:OR, and include similarities and graded scales, e.g., beginner, intermediate, juniour

Incremental progress	Measure property	Mathematical operators	Advanced operations	Central tendency
Similar	Overlapping classifications, degree or membership	≈, ≊	Approximation
Nominal	Classification, membership	=, ≠, ∈, ∉	Grouping	Mode
Ordinal/Grade	Comparison, level	>, <, ≤, ≥	Sorting	Median
Interval	Difference, affinity	+, −	Yardstick	Mean, Deviation
Ratio	Magnitude, amount	×, User:Dpleibovitz/sandbox/List of numbered classification classes/	Ratio	Geometric mean, Coefficient of variation

Similar

Name? Technically, many non-physical scales are similars, in that there is no perfect external construct validity. A grade of B in a great university may be worth more than an A on an online university. Indeed, such gradings can differ in meaning (measure of student understanding) between professors, departments, universities, states/provinces, countries, and it is not clear what a failing grade for a bored and unchallenged genious actually means. Percentages fall in here (and thereby the discretized grade). No talk about the kind of error. This proscriptive typology is more about meaningless numbers.

Nominal

Further information: nominal data

Nominal data has no meaningful order. One can test for equality of inequality, but not for greater than. No distance - no metric. The #Notes can still indicate the bases of equivalence.

Ordinal

Further information: Ordinal data

Note that graded types (like the Level of Measurement) are named, have an order, but are not numbered. Note that many "scales" cannot scale as this requires multiplication by a scale factor that is only supported by ratio data. These could be called indices.

Grade

A grade is simply a named (enumerated) ordinal, e.g., beginner, intermediate, senior

Interval

Further information: Interval data

Ratio

By number

1

Cat 1, Kind 1, etc.

Collection Class

Collection protypes

• Category
• Class - often synonymous with category (and redirected)
• Group
• Kind
• Number
• Tier
• Type
• Level
• Degree
• Rating
• Index

Category

For collection classes named Category' or Cat.

Main category: Category (grouping)

The word "category" and "class" are often interchanged.

Category A, 1, or I

For uses of "Category 1" outside a classification scheme, see Category 1 (disambiguation).

This page is about 1 or roman numeral I. For letter I, see § Category I.

Category E, 5, or V

See also: § Category V

Degree

Lieudo in Chinese

Level

i.e., those numbered within "groups", "categories", "classes", etc., e.g., "Group 1". For an item to appear in the

See also

• Label
• Identifier

Draft questions to be resolved

• Title?
• Don't want to include Category:ISO standards because "ISO" is not a general grouping/collection/
• What is the best word for a collection: grouping, classes, collection?
• class 1 is a prototype for equivalence classes
• Ordered change to scale. My need citations for synthesis.

Category:Equivalence classes Category:Vocabulary Category:Science-related lists