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- (library (statistics)
- (export percentage
- stat-learned)
- (import (except (rnrs base))
- (only (guile)
- lambda* λ
- exact->inexact)
- (only (vocabulary-filters)
- learned?)
- (model)
- (srfi srfi-43))
- (define percentage
- (lambda* (ratio #:key (precision 2))
- (let ([precision-factor (expt 10 precision)])
- (exact->inexact
- (/ (floor (* (* ratio 100) precision-factor))
- precision-factor)))))
- (define stat-learned
- (λ (vocabulary)
- (/ (vector-count (λ (_ word) (learned? word))
- (vocabulary-words vocabulary))
- (vector-length (vocabulary-words vocabulary))))))
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