17 lines
566 B
Factor
17 lines
566 B
Factor
! Copyright (C) 2021 Bubbler.
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! See http://factorcode.org/license.txt for BSD license.
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USING: arrays assocs io io.encodings.utf8 io.files kernel locals
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math math.functions math.parser prettyprint sequences splitting
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;
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IN: rosalind.rstr
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: 1-n ( n -- 1-n ) 1 swap - ;
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:: rstr ( trials gc-content str -- prob )
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"GACT" gc-content dup 1-n 2array [ 2 / ] map dup append zip
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[ str >array ] dip substitute product 1-n trials ^ 1-n ;
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: rstr-main ( -- ) "datasets/rosalind/rstr.txt" utf8 file-contents
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" \n" split first3 [ [ dec> ] bi@ ] dip rstr . ;
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MAIN: rstr-main |