Why does my vector repeat numbers?
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So I am trying to sort a random array of integers and with my code everything works except certain numbers will repeat multiple times. I'm not sure what I am doing that's making it repeat but I think it has to do with me possibly overwriting my variable x(k).
function y = sort(x)
for k = 1:length(x)-1
% Compare x(k) with values in original array x
for i = (k+1):length(x)
if x(k) < x(i)
temp = 0;
temp = x(i);
x(k) = temp;
end
end
y = x;
4 个评论
Chad Greene
2015-4-28
Whoa, careful writing a function called sort. That's already the name of a built-in function! This will make it hard to be confident that Matlab is choosing to use the version of sort that you want Matlab to use. If you use someone else's code or download File Exchange submissions that use the built-in sort, Matlab might try to use your sort instead. Rename your sort to mysort or something meaningful.
CalamityGoat
2015-4-28
Stephen23
2015-4-28
Also note that you should avoid using i and j as variable names, as these are both names of the inbuilt imaginary unit.
Chad Greene
2015-4-28
Also be careful using i and j as variables. They're both built in as the imaginary unit. Overwriting them is usually not a problem, but when it is a problem, it can be hard to track down.
采纳的回答
for j = 1:length(x)-1
% Find jth smallest element
imin = j;
for i = (j + 1):length(x)
if (x(i) < x(imin))
imin = i;
end
end
if (imin ~= j)
val = x(imin);
x(imin) = x(j);
x(j) = val;
end
end
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