'T ht01.75.54' computer keyboard layout

Sections

  1. Summary
  2. Changes from other layouts
  3. Similarity to other layouts
  4. Scores
  5. Comparison to other well-known layouts
  6. Finger based metrics
  7. English Word-based analysis
  8. Comparison to other layouts (word metrics)
  9. English heat map
  10. Programming Code (all languages) heat map
  11. Most common English bigram pairs
  12. Most common Code bigram pairs
  13. Typing lessons
Canonical namet-ht01-75-54.en.ergodox
Form factorSplit : Ergodox / Kinesis
'Author'Ian Douglas
Author data may not be correct, we're working on it.
Keys horizontally staggeredNo
Letters on thumb (lower and upper case)2
Avoids AltGr for standard charactersYes
Does not move non-character keys (ANSI/ISO)Yes
Maintains QWERTY 'shift' pairsNo
Maintains QWERTY top row (ANSI/ISO)Yes
Uppercase on same keyNo
Conventional home keys, fingering, Space, Enter, Shifts, AltGrNo
Maintains QWERTY ZXCVNo
Maintains Colemak punctuationNo
Vowel handLeft
Vowels and tricky charactersLeft hand: AEHIOUYaehiouyRight hand: CLRWclrw

Click image for larger view

t-ht01-75-54.en.ergodox


Download the Keyboard Layout Analyzer .json file.

Scores

Scores are percentages relative to the best layout for each metric.
MetricPercentage
Finger-based metrics75.73
Word-based metrics88.78
English73.93
Code79.78
Proglish78.86
Words metric for no same-finger88.78
Overall score80.08

All layouts (675)

MetricLowestLowest scoret-ht01-75-54.en.ergodox scoreHighestHighest score
Fingersnoel.en.ansi26.6175.73
vckb2.en.ergodox98.50
Wordsnoel.en.ansi18.2788.78
full-r2-rt162_25-2ec2c1.en.ansi100.00
Averagenoel.en.ansi23.8380.08
vckb2.en.ergodox97.54

Overview compared to all other layouts

t-ht01-75-54.en.ergodox t-ht01-75-54.en.ergodox

ANSI layouts

Ergo layouts

All Ergo (124)

MetricLowestLowest scoret-ht01-75-54.en.ergodox scoreHighestHighest score
Fingersqwerty.en.ergodox41.7275.73
vckb2.en.ergodox98.50
Wordsneo2-us.en.ergodox65.4688.78
lydell-anishtro.en.ergodox99.11
Averageqwerty.en.ergodox51.3480.08
vckb2.en.ergodox97.54

Overview compared to all other Ergo layouts

t-ht01-75-54.en.ergodox t-ht01-75-54.en.ergodox

Ergo layouts

All Ergo, no AltGr (51)

MetricLowestLowest scoret-ht01-75-54.en.ergodox scoreHighestHighest score
Fingersqwerty.en.ergodox41.7275.73
vckb2.en.ergodox98.50
Wordsqwerty-thumbshift.en.ergodox70.5088.78
lydell-anishtro.en.ergodox99.11
Averageqwerty.en.ergodox51.3480.08
vckb2.en.ergodox97.54

Overview compared to all other Ergo layouts, no AltGr

t-ht01-75-54.en.ergodox t-ht01-75-54.en.ergodox

Ergo layouts, no AltGr

Comparison to other well-known layouts

t-ht01-75-54.en.ergodox t-ht01-75-54.en.ergodox

colemak-thumbshift.en.ergodox

mtgap-thumbshift.en.ergodox

dvorak.en.matrix

maltron-us-90.en.ergodox

qwerty.en.ansi

Best Ergo

lydell-anishtro.en.ergodox

vckb2.en.ergodox

Worst Ergo

azerty.fr.iso

neo2-us.en.ergodox

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
Bestvckb2.en.ergodox41.0041.0531.9359.05
This layoutt-ht01-75-54.en.ergodox55.4652.5347.9276.41
Referenceqwerty.en.ansi100.00100.00100.00100.00

Programming code

RankLayoutScoreDistanceSameFingerSameHand
Bestx1_atreus-44-keys.en.ergodox54.5034.5661.2880.83
This layoutt-ht01-75-54.en.ergodox68.3159.6169.2783.78
Referenceqwerty.en.ansi100.00100.00100.00100.00

Proglish (an 80:20 English:Code mix)

RankLayoutScoreDistanceSameFingerSameHand
Bestvckb2.en.ergodox47.0841.5043.7464.91
This layoutt-ht01-75-54.en.ergodox59.7054.5255.5978.26
Referenceqwerty.en.ansi100.00100.00100.00100.00

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

Higher is better. Score is out of 100.
RankLayoutPercentage
Bestvckb2.en.ergodox98.50
This layoutt-ht01-75-54.en.ergodox75.73
Referenceqwerty.en.ansi44.26
MetricLowestLowest scoret-ht01-75-54.en.ergodox scoreHighestHighest score
Overall fingersnoel.en.ansi26.6175.73
vckb2.en.ergodox98.50

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:

adehnorst

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 and to a that as on at he are had not or an her has one she so there other than no do then these those see three too another end here set need of in is was for with it be by i his from which have were this but you their they all been will who would more its up can him out into we when said them about time if some only also first could two my what over such may me any like after very most new made your people now between should where years many being our before through much way work did well down back just even because own little make must good under man used both same how still while use last life against know year each us get mr take long part off go day might great never found old gbp right place came during again without come world men upon think later say few left number away thought until home small different system though around since often called within always every 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
adehnorst1050452812northeastern

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
adehnorst20383408119seventeenth-century

Word count
Word length

Word metric comparisons

MetricLowest exampleLowest scoret-ht01-75-54.en.ergodox scoreHighest exampleHighest score
Home keys wordstahan.en.ansi44528
cahi.en.matrix5445
No same-finger wordsnoel.en.ansi8404081
dilbert.en.ansi4597
Words averagenoel.en.ansi18.27 %88.78 %
full-r2-rt162_25-2ec2c1.en.ansi100.00 %

Comparison to other layouts

t-ht01-75-54.en.ergodox t-ht01-75-54.en.ergodox

colemak-thumbshift.en.ergodox

mtgap-thumbshift.en.ergodox

dvorak.en.matrix

maltron-us-90.en.ergodox

qwerty.en.ansi

ANSI layouts

Ergo layouts

Best Ergo

cahi.en.matrix

lydell-anishtro.en.ergodox

Worst Ergo

neo2-us.en.ergodox

azerty.fr.iso

Heat map

English heat map

t-ht01-75-54.en.ergodox

Programming Code (all languages) heat map

t-ht01-75-54.en.ergodox Note: Colour change points are different in the Code heat map due to the different character frequency distribution.

Ten most common English bigram pairs (excluding space and enter)

( er ht eh in an it no en es at)
t-ht01-75-54.en.ergodox

Ten most common Code bigram pairs (excluding space and enter)

(er in en et ar el es or st at )
t-ht01-75-54.en.ergodox

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