Creating a Wordscramble using matlab

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AJ Schmidt
AJ Schmidt 2020-4-21
评论： Stephen23 2020-4-21
Hi, working on a review sheet (not for a grade), and I need to create a function that recieves a word and scrambles every letter except for the first and last letters of the word. I've already created a function that scrambles a word entirely in a previous problem, but I can't figure out how to rearrange it to leave the first and last letters unscrambled. Here's my function:
function outword =wordscramble(inword)
len = length(inword);
% Puts random index in the first element
indvec = zeros(1,len);
indvec(1) = randi([1 len]);
% Makes sure every index is only used one time
for i = 2:len
ran = randi([1 len]);
while any(indvec(1:i-1)== ran)
ran = randi([1,len]);
end
indvec(i) = ran;
end
outword = inword(indvec);
end

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采纳的回答

Ameer Hamza
Ameer Hamza 2020-4-21
编辑：Ameer Hamza 2020-4-21
Try this
function outword = wordscramble(inword)
outword = inword;
n = numel(inword);
idx = randperm(n-2)+1;
outword(2:end-1) = outword(idx);
end
Example
>> wordscramble('A quick brown fox')
ans =
'Acqoouwb f r iknx'
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Stephen23
Stephen23 2020-4-21
You can create your own randperm by sorting any random vector of numbers:
>> str = 'A quick brown fox';
>> [~,idx] = sort(rand(1,numel(str)));
>> str(idx)
ans = uoqbio kAfwcx rn

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