'Combinational' computer keyboard layout

Canonical namecombinational.en.ansi
LanguageEnglish
Form factorSlab : ANSI
'Author'Nelson (1920)
Author data may not be correct, we're working on it.
Keys horizontally staggeredYes
Letters on thumb (lower and upper case)0
Avoids AltGr for standard charactersYes
Does not move non-character keys (ANSI/ISO)Yes
Maintains QWERTY 'shift' pairsYes
Maintains QWERTY top row (ANSI/ISO)Yes
Uppercase on same keyYes
Conventional home keys, fingering, Space, Enter, Shifts, AltGrNo
Maintains QWERTY ZXCVNo
Maintains Colemak punctuationNo

Click image for larger view

combinational.en.ansi


Download the Keyboard Layout Analyzer .json file.

Changes from QWERTY (1873)

combinational.en.ansi

Changes from Modified Blickensderfer (1892 / 2012)

combinational.en.ansi

Changes from Dvorak (1936)

combinational.en.ansi

Changes from Colemak (2006)

combinational.en.ansi

Changes from MTGAP (2012)

combinational.en.ansi

Changes from HIEAMTSRN (2014)

combinational.en.ansi

Changes from Uciea Vanilla (2021)

combinational.en.ansi

Changes from Poqtea-qp (Autogenerated, 2021)

combinational.en.ansi

Similarity

AncestorScore
QWERTY (1873)
Modified Blickensderfer (1892 / 2012)
Dvorak (1936)
Colemak (2006)
MTGAP (2012)
HIEAMTSRN (2014)
Uciea Vanilla (2021)
Poqtea-qp (2021)
Maximum

Combinational is most similar to

LayoutScore
eaton.en.ansi11.50
hands-on.en.ansi11.00
halmak.en.ansi10.75
nirvana-opt.en.ansi10.25
qgmlwy.en.ansi10.25
codemakx.en.ansi10.25
rotsw.en.ansi10.25
colemak-mod-ian-2.en.ansi10.25
embizone-mod-ian.en.ansi10.25
solemak.en.ansi10.00

Combinational is least similar to

LayoutScore
three-vanilla.en.ansi2.50
heiadtsrn-wfgv.en.ansi2.75
full-maks-minimo.en.ansi2.75
quartz-glyph.en.ansi2.75
hieamtsrn-optimized.en.ansi2.75
dvorak-mod-ian.en.ansi3.00
noname-30.en.ansi3.00
beakl_stretch.en.ansi3.00
beakl-opted4.en.ansi3.00
austenmak.en.ansi3.00

Scores

Scores are percentages relative to the best layout for each metric.
MetricPercentage
Finger-based metrics47.11
Word-based metrics71.00
English45.97
Code49.58
Proglish49.19
Words metric for no same-finger71.00
Overall score55.07

All layouts (434)

MetricLowestLowest scorecombinational.en.ansi scoreHighestHighest score
Fingersnoel.en.ansi27.8347.11
maks-ex.en.ergodox98.54
Wordsnoel.en.ansi17.4071.00
whorf.en.ansi100.00
Averagenoel.en.ansi24.3555.07
maks-ex.en.ergodox98.08

All ANSI (325)

MetricLowestLowest scorecombinational.en.ansi scoreHighestHighest score
Fingersnoel.en.ansi27.8347.11
full-maks-minimo.en.ansi78.62
Wordsnoel.en.ansi17.4071.00
whorf.en.ansi100.00
Averagenoel.en.ansi24.3555.07
full-maks-minimo.en.ansi83.79

Unconventional ANSI (74)

MetricLowestLowest scorecombinational.en.ansi scoreHighestHighest score
Fingersqwerty-typewriter.en.ansi33.8247.11
full-maks-minimo.en.ansi78.62
Wordsdvorak-mod-elazharty-azmi-suliman-mod-ian.en.ansi39.2271.00
hieaqmtsrn.en.ansi96.66
Averagearmel-refingered-ian.en.ansi39.7255.07
full-maks-minimo.en.ansi83.79

Comparison to other layouts

combinational.en.ansi combinational.en.ansi

colemak.en.ansi

mtgap.en.ansi

workman.en.ansi

dvorak.en.ansi

norman.en.ansi

qwerty.en.ansi

Best ANSI

full-maks-minimo.en.ansi

whorf.en.ansi

Worst ANSI

noel.en.ansi

Finger based metrics

Finger based metrics, as determined with Keyboard Layout Analyzer, using KLAnext scoring model, and then normalised to ANSI QWERTY = 100.
Lower is better.

English

RankLayoutScoreDistanceSameFingerSameHand
Bestmaks-ex.en.ergodox43.8743.4032.7667.01
This layoutcombinational.en.ansi95.4387.5795.53110.97
Referenceqwerty.en.ansi100.00100.00100.00100.00

Programming code

RankLayoutScoreDistanceSameFingerSameHand
Bestx1_atreus-44-keys.en.ergodox54.5034.5661.2880.83
This layoutcombinational.en.ansi109.93114.35110.7999.39
Referenceqwerty.en.ansi100.00100.00100.00100.00

Proglish (an 80:20 English:Code mix)

RankLayoutScoreDistanceSameFingerSameHand
Bestmaks-ex.en.ergodox49.2242.4944.7871.55
This layoutcombinational.en.ansi100.0795.03100.95108.39
Referenceqwerty.en.ansi100.00100.00100.00100.00

Overall Fingers score (4 * English % + Code % + Proglish %) / 6

Higher is better. Score is out of 100.
RankLayoutPercentage
Bestmaks-ex.en.ergodox98.54
This layoutcombinational.en.ansi47.11
Referenceqwerty.en.ansi46.53
MetricLowestLowest scorecombinational.en.ansi scoreHighestHighest score
Overall fingersnoel.en.ansi27.8347.11
maks-ex.en.ergodox98.54

English Word-based analysis

Home Keys Analysis

The Home Keys for this layout are shown with red dots in the first image above, giving the following letters:

abehrstw

Home key common words

Not part of final score.
Which of the 200 most common words are typeable on the home keys.

Words handledWords not handled
the a that was as be at he are were her has she there we what these where see three here set of and to in is for with on it by i his from had not which have or an this but you their they all been one will who would more its up can him so out into when said them about other than time no if some only also first could two my over such do may me any like then after very most new made your people now between should years many being our before through much way work those did well down back just even because own little make must good under man used both same how still while use last too life against know year each us get mr take long part off go day might great never found old gbp right another place came during again without come world men end upon think later say few left number away thought until home small different system though around since often called within always every need went

Home key words

How many of the 30,000 most common words in the English corpus are typeable on the home keys.
Not included in final score ... layouts with letters on thumb have unfair advantage, and it punishes layouts which opt to keep O and U off the home row.

Home Key lettersEnglish words typeableScoreLongest wordExample
abehrstw457181910sweetheart

Word count
Word length

No same-finger words

How many of the 30,000 most common words in the English corpus can be typed without using the same finger twice.

Home Key lettersEnglish words typeableScoreLongest wordExample
abehrstw17439112618disproportionately

Word count
Word length

Word metric comparisons

MetricLowest exampleLowest scorecombinational.en.ansi scoreHighest exampleHighest score
Home keys wordsabcdef.en.ansi151819
cahi.en.matrix5445
No same-finger wordsnoel.en.ansi2761126
whorf.en.ansi1586
Words averagenoel.en.ansi17.40 %71.00 %
whorf.en.ansi100.00 %

Typing lessons

Download some English words suitable for learning the layout.
Note if any files are empty it's because there are not enough words to create a lesson. This is most noticeable in the bad layouts.

Week 1Homekey words Day 1 Day 2 Day 3 Day 4 Day 5
Week 2No same-finger words Day 1 Day 2 Day 3 Day 4 Day 5
Week 3Common / tricky words Day 1 Day 2 Day 3 Day 4 Day 5
Week 4Pangrams Day 1 Day 2 Day 3 Day 4 Day 5
Week 5So you think you can type? Day 1 Day 2 Day 3 Day 4 Day 5
Week 6Extra practice 1: Common words in text Day 1 Day 2 Day 3 Day 4 Day 5
Week 7Extra practice 2: Lorem ipsum and friends Day 1 Day 2 Day 3 Day 4 Day 5
Week 8Extra practice 3: Underused words Day 1 Day 2 Day 3 Day 4 Day 5
Week 9Extra practice 4: Commonly misspelled words Day 1 Day 2 Day 3 Day 4 Day 5