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networks: Add make-syn and make-asyn.

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This commit is contained in:
Sergiu Ivanov 2020-02-23 11:25:19 +01:00
parent 2fa89f05b9
commit c9cbb1c951
2 changed files with 17 additions and 1 deletions
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5
networks-tests.rkt
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@ -96,3 +96,8 @@
(check-false (has-edge? sig2 'c 'a))
(check-equal? (edge-weight sig2 'a 'b) 1)
(check-equal? (edge-weight sig2 'b 'a) -1)))
(test-case "Dynamics of networks"
(let ([vars '(a b c)])
(check-equal? (make-asyn vars) (set (set 'a) (set 'b) (set 'c)))
(check-equal? (make-syn vars) (set (set 'a 'b 'c)))))

13
networks.rkt
View file

@ -30,7 +30,9 @@
[make-boolean-domains (-> (listof variable?) (hash/c variable? (list/c #f #t)))]
[get-interaction-sign (-> network-form? domain-mapping/c variable? variable? (or/c '+ '- '0))]
[build-signed-interaction-graph (-> network-form? domain-mapping/c graph?)]
[build-boolean-signed-interaction-graph (-> network-form? graph?)])
[build-boolean-signed-interaction-graph (-> network-form? graph?)]
[make-asyn (-> (listof variable?) mode?)]
[make-syn (-> (listof variable?) mode?)])
;; Predicates
(contract-out [variable? (-> any/c boolean?)]
[state? (-> any/c boolean?)]
@ -254,3 +256,12 @@
;;; A network dynamics is a network plus a mode.
(struct dynamics (network mode))
;;; Given a list of variables, builds the asynchronous mode (a set of
;;; singletons).
(define (make-asyn vars)
(for/set ([v vars]) (set v)))
;;; Given a list of variables, builds the synchronous mode (a set
;;; containing the set of variables).
(define (make-syn vars) (set (list->set vars)))