Knuth shuffle: Difference between revisions
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Puppydrum64 (talk | contribs) (→{{header|6502 Assembly}}: Overhauled this section with a solution that can work with any range of values) |
ReeceGoding (talk | contribs) m (→{{header|R}}: Syntax highlighting.) |
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===Original Fisher-Yates version=== |
===Original Fisher-Yates version=== |
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<lang |
<lang rsplus>fisheryatesshuffle <- function(n) |
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{ |
{ |
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pool <- seq_len(n) |
pool <- seq_len(n) |
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}</lang> |
}</lang> |
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===Knuth variation=== |
===Knuth variation=== |
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<lang |
<lang rsplus>fisheryatesknuthshuffle <- function(n) |
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{ |
{ |
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a <- seq_len(n) |
a <- seq_len(n) |
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===Short version=== |
===Short version=== |
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After accounting for R being 1-indexed rather than 0-indexed, it's not hard to implement the pseudo-code given in the task almost exactly: |
After accounting for R being 1-indexed rather than 0-indexed, it's not hard to implement the pseudo-code given in the task almost exactly: |
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<lang |
<lang rsplus>knuth<-function(vec) |
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{ |
{ |
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last<-length(vec) |
last<-length(vec) |
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