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!! +var+ +random+ +string+
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!! +var+ +random+ +string+
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tit:shuffle
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tit:shuffle
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type:$type_var
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type:$type_var
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alias:randperm, randpermute
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alias:randperm, randpermute
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syntax:!shuffle [even|odd] `n'
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syntax:!shuffle [even|odd] ``n''
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!shuffle [even|odd] `list'
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!shuffle [even|odd] ``list''
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mean:Randomly permutes a set of `n' elements. `n' must be a positive integer \
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mean:Randomly permutes a set of ``n'' elements. ``n'' must be a positive integer \
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  not greater than 1024 in the first usage, or is the number of items in `list' in the second\
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  not greater than 1024 in the first usage, or is the number of items in ``list'' in the second\
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  usage. <br/>\
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  usage. <br/>\
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  For the first usage, the command returns a comma-separated list `i<sub>1</sub>, i<sub>2</sub>, ...,\
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  For the first usage, the command returns a comma-separated list ``i<sub>1</sub>, i<sub>2</sub>, ...,\
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  i<sub>n</sub>', where the items `i<sub>k</sub>' are\
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  i<sub>n</sub>'', where the items ``i<sub>k</sub>'' are\
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  randomly ordered elements of the set `{1,2,...,n}'. <br/>\
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  randomly ordered elements of the set ``{1,2,...,n}''. <br/>\
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  This command can be used in conjunction with commands\
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  This command can be used in conjunction with commands\
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  $(ref1)cmdlist_item_&+cmd_choose=all$(ref2)cmdlist_item_">!item</a>,\
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  $(ref1)cmdlist_item_&+cmd_choose=all$(ref2)cmdlist_item_">!item</a>,\
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  $(ref1)cmdlist_line_&+cmd_choose=all$(ref2)cmdlist_line_">!line</a>,\
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  $(ref1)cmdlist_line_&+cmd_choose=all$(ref2)cmdlist_line_">!line</a>,\
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  $(ref1)cmdlist_word_&+cmd_choose=all$(ref2)cmdlist_word_">!word</a>,\
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  $(ref1)cmdlist_word_&+cmd_choose=all$(ref2)cmdlist_word_">!word</a>,\
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  $(ref1)cmdlist_char_&+cmd_choose=all$(ref2)cmdlist_char_">!char</a>,\
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  $(ref1)cmdlist_char_&+cmd_choose=all$(ref2)cmdlist_char_">!char</a>,\
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  to randomly permute items, lines, words, or characters in a string. <br/>\
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  to randomly permute items, lines, words, or characters in a string. <br/>\
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  For the second usage, a new list with randomly permuted items in `list' is returned. <br/>\
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  For the second usage, a new list with randomly permuted items in ``list'' is returned. <br/>\
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  In any case, the variable `wims_shuffle_order' is set to be\
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  In any case, the variable ``wims_shuffle_order'' is set to be\
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  the list `i<sub>1</sub>, i<sub>2</sub>, ..., i<sub>n</sub>'. <br/>\
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  the list ``i<sub>1</sub>, i<sub>2</sub>, ..., i<sub>n</sub>''. <br/>\
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  When the optional word `even' or `odd' is present, only even/odd permutations are produced.
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  When the optional word ``even'' or ``odd'' is present, only even/odd permutations are produced.