14 syntactic complexity indices and others

Type 1
Length of production Unit


Mean length of sentence
Mean length of clause
Mean length of T-Unit


# of words / # of clauses
# of words / # of sentences
# of words / # of T-units

Type 2
Particular structures

Complex nominals per clause
Complex nominals per T-unit
Verb phrases per T-unit

# of complex nominals / # of clauses
# of complex nominals / # of T-units
# of verb phrases / # of T-units

Type 3
Subordination


T-unit complexity ratio
Complex T-unit ratio
Dependent clause ratio
Dependent clauses per T-unit


# of clauses / # of T-units
# of complex T-units / # of T-units
# of dependent clauses / # of clauses
# of dependent clauses / # of T-units

Type 4
Coordination


Coordinate phrases per clause
Coordinate phrases per T-unit
Sentence coordination ratio

# of coordinate phrases / # of clause
# of coordinate phrases / # of T-units
# of T-units / # of sentences

Type 5
Sentence Complexity

Sentence complexity ratio

# of clauses / # of sentences

others

SYNLE
mean number of the words before main verb 

SYNNP
the average number of modifiers per noun phrase


Syntactic Pattern Density and other indices

DRNP

density of noun phrase
명사구 밀도

DRVP

density of verb phrase
동사구 밀도

DRAP

density of adverbial phrase
부사구 밀도

DRPP

density of prepositional phrase
전치사구 밀도

DRPVAL

density of agentless passive voice
수동태 밀도

DRNEG

density of negation
부정어 밀도

DRGERUND

density of gerund
동명사 밀도

DRINF

density of infinitive
부정사구 밀도