bubble sort function that sort element of a vector from tha largest to the smallest

Question

kevin piaget 2012-12-9

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/56093-bubble-sort-function-that-sort-element-of-a-vector-from-tha-largest-to-the-smallest

评论： James Tursa 2020-2-24

defined function that sorts the elements of a vector (of any length) from largest to smallest.

this is my work

function [ y ] = downsort_function( x )
%UNTITLED Summary of this function goes here
%   Detailed explanation goes here
n=numel(x);
t=1;
a=0;
while t==1;
for i=1:(n-1)
    if x(i)>x(i+1)
       x(i+1)=x(i);
         t=1;
    end 
   end
end

the problem is when i try to read with my vector, my machine gets stuck. it not giving me anything or i have to restart the machine.

thanks for yr help

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Answer 1

Walter Roberson 2012-12-9

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/56093-bubble-sort-function-that-sort-element-of-a-vector-from-tha-largest-to-the-smallest#answer_67946

You never set t to 0 so your loop never exits.

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kevin piaget 2012-12-9

编辑：Walter Roberson 2012-12-10

在 MATLAB Online 中打开

i made this chance but i still don't have an answer

function [ y ] = downsort_function( x )
%UNTITLED Summary of this function goes here
%   Detailed explanation goes here
n=numel(x);
t=1;
a=0;
while t==0;
for i=1:(n-1)
    if x(i)>x(i+1)
       x(i+1)=x(i);
       swap(x(i+1),x(i))
         t=1;
    end 
   end
end

Walter Roberson 2012-12-10

I cannot seem to locate any Mathworks function named "swap" ?

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Answer 2

JayaSaiRamPavan Tanneru 2020-2-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/56093-bubble-sort-function-that-sort-element-of-a-vector-from-tha-largest-to-the-smallest#answer_416825

在 MATLAB Online 中打开

x=input('enter:');
k=length(x);
for n=1:k
    for m=1:k
        if x(n)>x(m)
            temp=x(n);
            x(n)=x(m);
            x(m)=temp;
        end
    end
end
disp(x);