Choose some data that has a minimum value

Question

baby 2013-1-20

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https://ww2.mathworks.cn/matlabcentral/answers/59335-choose-some-data-that-has-a-minimum-value

采纳的回答： Azzi Abdelmalek

在 MATLAB Online 中打开

hello all,,

i wanna asking about how to choose some data that has a minimum value,,

example :

i do input five data

then after that it will choose three data that has minimum value

i've knew that if choose minimum data in matlab use "min" command

but it just give one value

i want in my case, it can choose three data that has minimum value

can someone help me??

this is my code

a= input ('Input Number of Data :');

for c=1:a

        int2 = ['Input The First Score - ',num2str(c),' :'];
        int3 = ['Input The Second Score - ',num2str(c),' :'];
        b(c,1) = input(int2);  
        b(c,2) = input(int3);
    end;
   for d = 1 : 1
        int4= ['Input The First Data :'];
        int5 = ['Input The Second Data :'];
        e(d,1) = input(int4);  
        e(d,2) = input(int5);
   end;
    x = ( b(:,1) - e(1,1)).^2 + (b(:,2) - e(1,2)).^2;
    disp(x)

NB : Sorry for my bad english :)

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Answer 1

Azzi Abdelmalek 2013-1-20

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/59335-choose-some-data-that-has-a-minimum-value#answer_71783

编辑：Azzi Abdelmalek 2013-1-20

在 MATLAB Online 中打开

x=[4 1 3 8 2 0 10]
a=sort(x);        % sort x in ascending order
min_value=a(1:3)  % choose the 3 first lowest numbers

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Azzi Abdelmalek 2013-1-20

Yes

baby 2013-1-20

在 MATLAB Online 中打开

if in my case the data has category so how to choose majority category

example :

First | Second | Total |Category
   | 7  | 16   |Bad
   | 4  | 25   |Bad
   | 4  | 9    |Good
   | 4  | 13   |Good

if i use function min value that u give to me before then the chosen data is data(1),data(3) and data(4) with one category is bad and two category is good

i wanna my final result is chosen by majority category of data

so the final result is "The new data's class is Good"

majority category data is "good" bcoz two data have category "good" and one data have category "bad"

so category "good" is chosen and bad is not chosen

how to make it?

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