Update specswa.m - BUG FIX

Fixed an ignored condition: `revmin` remains original.

Author: CinnabarCHU

code/package/swa/specswa.m

@@ -156,7 +156,7 @@
         end
     end
 
-    if(revmin == 0)
+    if(revmin <= rev1 && revmin <= rev2) % BUG FIX - HY ZHU, 27 NOV 2023
         if(rmsemin > rmsef1)
             rmsemin=rmsef1;
             winfinal=winwidth;
@@ -351,4 +351,4 @@
 for i = 1:nout
     swa(i) = 10.0 ^ fitsp(i);
 end
-swa = swa(:); % Ensure swa is a column vector
+swa = swa(:); % Ensure swa is a column vector