save only one value

Hello,

I have for example matrix

    MON = [2.8 3.6 17.2;
            5.4 8.3 15.8;
            2.5 3.2 17.6;
             9.9 10.7 13.6;
              5.5 8.9 15.5;
              9.7 11 13.9;
              2.3 3.9 17.9;
              5.7 8.1 15.1;
              9.4 10.5 13;
              9.9 13.2 13.7];

I calculate distance between points from MATRIX.

or i=1:m % pre pocet objektov (pre kazdy riadok MON)

        B = MON(i,:); % vloz i-ty riadok z MON do premennej B

        for j=1:r % pre kazdy riadok TAZ
            ED(j)= distance(TAZ(j,:),B,fff); %euklidovska vzdialenost
            [minD, minI(idx)] = min([ED]); %minimalna hodnota a index

        end

Then I want to save the smallest value to the cell.

 [e,f]=size(ED);

        for h=1:f

            if (ED(h) == ED(minI(idx)))          
            Z{h}{z}=B;
            z=z+1;
          end
        end   

        idx=idx+1;
    end

If I have the same value is stored me both to cell. How i stored a just a single valu to cell.

For example ED=[4 4 6] I want only values from position ED(1) save to cell.

Thanks.

[Image Analyst]

Why a cell instead of a regular numerical array which is much much easier to work with?

Answer 1

[Salaheddin Hosseinzadeh]

Sorry, but even your English is a bit confusing, just like mine! lol Is the problem of having two 4 bothers you?

If so then I guess you can use 'unique' to get rid of the repeated 4

ED= unique(ED,'stable') % this should give you ED=[4,6]

Sorry if I didn't get what's your problem, please explain more what do you want to happen.

Good Luck!

[Tomas]

sorry for my English, i want so that I had for example i have ED=[ NaN, Inf, Inf]....... ED=[NaN,Inf]

If 2 equal value that was one of them.

Thanks

[Salaheddin Hosseinzadeh]

OK! So your English is ok, because I understood you problem I just thought I didn't.

Have you tried the command the I suggested you in the answer above?

ED= unique(ED,'stable') %

I believe this will solve your problem.

Good Luck!

[Tomas]

Yes, I tried error Unrecognized option.

[Salaheddin Hosseinzadeh]

Are you sure the error is not for something else rather than

ED= unique(ED,'stable') %

Put your code and the error you get for running the code

[Tomas]

Yes, I'm sure,

??? Error using ==> unique at 34 Unrecognized option.

Error in ==> KMNS at 262 ED= unique(ED,'stable')

ED is for example ED=[inf NaN NaN] i want to have ED=[inf, NaN]

[Salaheddin Hosseinzadeh]

First of all so sorry for getting back to you with a huge delay, you're problem is probably solved by now! so sorry

I read through the MATLAB help for 'unique()' and unfortunately it's clearly documented that 'unique treats NaN values as distinct'

So for your example we can't use unique anyway!

If the problem is only with NaN then it's easy

i=1;
NanCount=0;
while(i<= length(ED))
     if(isnan(ED(i)))
         if(NanCount>0)
            ED(i)=[];
            i=i-1;
         end
         NanCount=NanCount+1; % to see how many nan is omitted
     end %end of if
     i=i+1;
end %end of while

Number of omitted NaNs should equal NanCount-1

Sorry I don't have MATLAB now to try it. Give it a shot and let me know about the result.