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How do I extract non zero minimum value and its index from a specific row??

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akash sonnad
akash sonnad le 20 Avr 2018
Commenté : Guillaume le 23 Avr 2018
for ex, C=[0,10,8,9,7;10,0,10,5,6;8,10,0,8,9;9,5,8,0,6;7,6,9,6,0]; i need min value from row 1 greater than zero. How do i get it?

Réponses (1)

Guillaume
Guillaume le 20 Avr 2018
Modifié(e) : Guillaume le 20 Avr 2018

If you want the minimum value greater than 1 from all the rows, then simply replace the values below 1 by inf and take the minimum:

C = [0,10,8,9,7;10,0,10,5,6;8,10,0,8,9;9,5,8,0,6;7,6,9,6,0];
tempC = C;
tempC(C < 1) = inf;
[minofrow, whichcolumn] = min(tempC, [], 2)
  4 commentaires
akash sonnad
akash sonnad le 20 Avr 2018
I mean extracting non zero row minimum from any randow row
Guillaume
Guillaume le 23 Avr 2018

Have you tried the code? It gives you the minimum greater (or equal( than one for each row. You can then use basic indexing to get the row that interest you.

Note that if you want the non-zero minimum instead of minimum greater than 1, then use

tempC(C == 0) = inf;

instead.

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