This is a python package for calculation of various linguistic features for quantitative/corpus linguistics study. It includes two modules:
quita.py: Linguistic features listed by software Quantitative Index Text Analyzer (QUITA)biber.py: Linguistic features listed by Douglas Biber in Variation across Speech and Writing (1995)
Quantitative Index Text Analyzer (QUITA) lists the folowing features:
Frequency Structure indicators:
- Type-Token Ratio (TTR)
- h-point (h)
- Vocabulary Richness (R1)
- Repeat Rate (RR)
- Relative Repeat Rate of McIntosh (RRmc)
- Hapax Legomenon Percentage (HL)
- Lambda (Λ)
- Gini Coefficient (G)
- Vocabulary Richness (R4)
- Curve length (L)
- Curve length Indicator (R)
- Entropy (H)
- Adjusted Modulus (A)
Miscellaneous indicators
- Verb Distances (VD)
- Activity (Q)
- Descriptivity (D)
- Writer’s View (α)
- Average Tokens length (ATL)
- Thematic Concentration (TC)
- Secondary Thematic Concentration (STC)
Biber listed the following 67 linguistic features:
(A) TENSE AND ASPECT MARKERS
A01: past tense
A02: perfect aspect
A03: present tense
(B) PLACE AND TIME ADVERBIALS
B04: place adverbials
B05: time adverbials
(C) PRONOUNS AND PRO-VERBS
(C1) PERSONAL PRONOUNS
C06: first person pronouns
C07: second person pronouns
C08: third person personal pronouns
(C2) IMPERSONAL PRONOUNS
C09: pronoun "it"
C10: demonstrative pronouns
C11: indefinite pronouns
(C3) PRO-VERBS
C12: pro-verb do
(D) QUESTIONS
D13: direct WH-questions
(E) NOMINAL FORMS
E14: nominalizations
E15: gerunds
E16: total other nouns
(F) PASSIVES
F17: agentless passives
F18: by-passives
(G) STATIVE FORMS
G19: "be" as main verb
G20: existential there
(H) SUBORDINATION
(H1) COMPLEMENTATION
H21: "that" verb complements
H22: "that" adjective complements
H23: WH-clauses
H24: infinitives
(H2) PARTICIPIAL FORMS
H25: present participial clauses
H26: past participial clauses
H27: past participial WHIZ deletion relatives
H28: present participial WHIZ deletion relatives
(H3) RELATIVES
H29: that relative clauses on subject position
H30: that relative clauses on object position
H31: WH relative clauses on subject position
H32: WH relative clauses on object positions
H33: pied-piping relative clauses
H34: sentence relatives
(H4) ADVERBIAL CLAUSES
H35: causative adverbial subordinators: because
H36: concessive adverbial subordinators: although, though
H37: conditional adverbial subordinators: if, unless
H38: other adverbial subordinators: (having multiple functions)
(I) PREPOSITIONAL PHRASES
(I1) PREPOSITIONAL PHRASES
I39: total prepositional phrases
(I2) ADJECTIVES AND ADVERBS
I40: attributive adjectives
I41: predicative adjectives
I42: total adverbs
(J) LEXICAL SPECIFICITY
J43: type/token ratio
J44: word length
(K) LEXICAL CLASSES
K45: conjuncts
K46: downtoners
K47: hedges
K48: amplifiers
K49: emphatics
K50: discourse particles
K51: demonstratives
(L) MODALS
L52: possibility modals
L53: necessity modals
L54: predictive modals
(M) SPECIALIZED VERB CLASSES
M55: public verbs
M56: private verbs
M57: suasive verbs
M58: seem/appear
(N) REDUCED FORMS AND DISPREFERRED STRUCTURES
N59: contractions
N60: subordinator-that deletion
N61: stranded prepositions
N62: split infinitives
N63: split auxiliaries
(O) COORDINATION
O64: phrasal coordination
O65: independent clause coordination
(P) NEGATION
P66: synthetic negation
P67: analytic negation: not