added select sort

Author: Andres Contreras

algorithms/sorting/select_sort.m

@@ -0,0 +1,14 @@
+%% Octave implementation for selection sort  
+function arrayToSort = select_sort(arrayToSort)
+    for i=1:length(arrayToSort)
+%%smallest element in the unsorted list
+        minimun_index=i;
+            for j=i+1:length(arrayToSort)
+                if (arrayToSort(j) < arrayToSort(minimun_index))
+                    minimun_index=j;
+                endif
+            endfor    
+%%replace the element with the minimun value of the unsorted array
+        arrayToSort([i minimun_index]) = arrayToSort([minimun_index i]);
+    endfor
+endfunction