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Add lists+vars->sbfs/state, lists+headers->sbfs/state, lists->sbfs/state.

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Sergiu Ivanov 2023-04-13 00:19:11 +02:00
parent 43d782f149
commit b611115f8c
2 changed files with 57 additions and 0 deletions
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19
scribblings/tbn.scrbl
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@ -155,3 +155,22 @@ variable, starting from 0.
@ex[
(lists->tbfs/state '((1 2 3) (1 1 2)))
]}
@deftogether[(@defproc[(lists+vars->sbfs/state [vars (Listof Variable)]
[lsts (Listof (Listof Real))])
(Listof TBF/State)]
@defproc[(lists+headers->sbfs/state
[lsts (Pairof (Listof Variable) (Listof (Listof Real)))])
(Listof TBF/State)]
@defproc[(lists->sbfs/state [lsts (Listof (Listof Real))])
(Listof TBF/State)])]{
Like the corresponding TBF-related functions, but which create SBFs.
In other words, the input lists are treated as lists of weights, and
the thresholds are set to 0.
@ex[
(lists+vars->sbfs/state '(x y) '((1 2) (1 1)))
(lists+headers->sbfs/state '((x y) (1 2) (1 1)))
(lists->sbfs/state '((1 2) (1 1)))
]}

38
tbn.rkt
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@ -26,6 +26,7 @@
sbf/state? apply-tbf/state
lists+vars->tbfs/state lists+headers->tbfs/state lists->tbfs/state
lists+vars->sbfs/state lists+headers->sbfs/state lists->sbfs/state
)
(: apply-tbf-to-state (-> TBF (State (U Zero One)) (U Zero One)))
@ -118,6 +119,43 @@
(check-equal? (lists->tbfs/state '((1 2 3) (1 1 2)))
(list (tbf/state '#hash((x0 . 1) (x1 . 2)) 3)
(tbf/state '#hash((x0 . 1) (x1 . 1)) 2)))))
(: lists+vars->sbfs/state (-> (Listof Variable) (Listof (Listof Real))
(Listof TBF/State)))
(define (lists+vars->sbfs/state vars lsts)
(for/list ([lst (in-list lsts)])
(make-tbf/state (map (inst cons Variable Real) vars lst) 0)))
(module+ test
(test-case "lists+vars->sbfs/state"
(check-equal? (lists+vars->sbfs/state '(x y) '((1 2) (1 1)))
(list (tbf/state '#hash((x . 1) (y . 2)) 0)
(tbf/state '#hash((x . 1) (y . 1)) 0)))))
(: lists+headers->sbfs/state (-> (Pairof (Listof Variable) (Listof (Listof Real)))
(Listof TBF/State)))
(define (lists+headers->sbfs/state lsts)
(lists+vars->sbfs/state (car lsts) (cdr lsts)))
(module+ test
(test-case "lists+headers->sbfs/state"
(check-equal? (lists+headers->sbfs/state '((x y) (1 2) (1 1)))
(list (tbf/state '#hash((x . 1) (y . 2)) 0)
(tbf/state '#hash((x . 1) (y . 1)) 0)))))
(: lists->sbfs/state (-> (Listof (Listof Real)) (Listof TBF/State)))
(define (lists->sbfs/state lsts)
(lists+vars->sbfs/state
(for/list ([i (in-range (length (car lsts)))])
(string->symbol (format "x~a" i)))
lsts))
(module+ test
(test-case "lists->sbfs/state"
(check-equal? (lists->sbfs/state '((1 2) (1 1)))
(list
(tbf/state '#hash((x0 . 1) (x1 . 2)) 0)
(tbf/state '#hash((x0 . 1) (x1 . 1)) 0)))))
)
(module+ test