'Colemak mod DH full' computer keyboard layout

Canonical namecolemak-mod-DH-full.en.ansi
LanguageEnglish
Form factorSlab : ANSI
'Author'
Author data may not be correct, we're working on it.
Keys horizontally staggeredYes
Letters on thumb (lower and upper case)0
Uses AltGr for standard charactersNo
Moves non-character keys (ANSI/ISO)No
Changes QWERTY 'shift' pairsNo
Changes top row (ANSI/ISO)No
Uppercase on different keyNo
Conventional home keys, fingering, Space, Enter, Shifts, AltGrNo
Maintains QWERTY zxcvNo

Click image for larger view

colemak-mod-DH-full.en.ansi


Download the Keyboard Layout Analyzer .json file.

Changes from QWERTY (1873)

colemak-mod-DH-full.en.ansi

Changes from Dvorak (1936)

colemak-mod-DH-full.en.ansi

Scores

Scores are percentages relative to the best layout for each metric.
MetricPercentage
Finger-based metrics69.07
Word-based metrics77.13
English71.95
Code58.40
Proglish68.20
Words metric for words on home keys57.10
Words metric for no same-finger97.15
Overall score73.10

All layouts (355)

MetricLowestLowest scorecolemak-mod-DH-full.en.ansi scoreHighestHighest score
Fingersyang-mali.en.ansi38.56
chia.en.matrix99.25
Wordsyang-mali.en.ansi7.45
chia-vanilla.en.matrix99.45
Averageyang-mali.en.ansi23.01
chia.en.matrix99.35

All ANSI (274)

MetricLowestLowest scorecolemak-mod-DH-full.en.ansi scoreHighestHighest score
Fingersyang-mali.en.ansi38.56
uciea-minimo3.en.ansi78.86
Wordsyang-mali.en.ansi7.45
optimal-trigram.en.ansi83.06
Averageyang-mali.en.ansi23.01
uciea-minimo3.en.ansi79.46

Unconventional ANSI (59)

MetricLowestLowest scorecolemak-mod-DH-full.en.ansi scoreHighestHighest score
Fingersqwerty-typewriter.en.ansi41.65
uciea-minimo3.en.ansi78.86
Wordsarmel-refingered-ian.en.ansi24.08
uciea-minimo3.en.ansi80.05
Averagearmel-refingered-ian.en.ansi35.90
uciea-minimo3.en.ansi79.46

Finger based metrics

Finger based metrics, as determined with Keyboard Layout Analyzer, using KLAnext scoring model.
QwertEff is the QWERTY Efficiency, i.e. the Score relative to qwerty.en.ansi at 100%.
Lower is better, except for QwertEff.

English

RankLayoutScoreDistanceFingerUsageSameFingerSameHandQwertEff
Bestchia.en.matrix95.9336.9931.7420.386.83184.23
This layout
Referenceqwerty.en.ansi176.7380.4237.5750.728.02100.00

Programming code

RankLayoutScoreDistanceFingerUsageSameFingerSameHandQwertEff
Bestx1_atreus-44-keys.en.ergodox159.6942.9935.9670.4710.25185.56
This layout
Referenceqwerty.en.ansi296.32124.4144.22115.0012.68100.00

Proglish (an 80:20 English:Code mix)

RankLayoutScoreDistanceFingerUsageSameFingerSameHandQwertEff
Bestchia.en.matrix110.0738.9932.0131.487.58182.28
This layout
Referenceqwerty.en.ansi200.6489.2238.9063.668.85100.00

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

Higher is better.
RankLayoutPercentage
Bestchia.en.matrix99.25
This layout
Referenceqwerty.en.ansi54.31
MetricLowestLowest scorecolemak-mod-DH-full.en.ansi scoreHighestHighest score
Overall fingersyang-mali.en.ansi38.56
chia.en.matrix99.25

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:

Home key common words

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

Home key words

How many of the 30,000 most common words in the English corpus are typeable on the home keys.

Words handledWords not handled

Home Key lettersEnglish words typeableScoreLongest wordExample
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
Word count
Word length

Word metric comparisons

MetricLowest exampleLowest scorecolemak-mod-DH-full.en.ansi scoreHighest exampleHighest score
Home keys wordsabcdef.en.ansi15
chia-vanilla.en.matrix5445
No same-finger wordsyang-mali.en.ansi22591
uciea-keyboard.en.ansi169072
Words averageyang-mali.en.ansi7.45 % %
uhia.en.matrix99.45 %

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