Update prob_obs_test.m

Changed lines 151-153, so that it creates xw and fw even if nw = 0. This fix prevents an error in line 163, which would otherwise appear since the code expects these variables (xw, fw) to exist.

STRIKE-GOLDD/functions/prob_obs_test.m

@@ -148,10 +148,10 @@ function prob_obs_test(modelname,opts,prev_ident_pars,nmf)
     xw = [x;wlvector];
     fw = [f;wlvector_dot]; 
     n = numel(xw);
+else 
+    xw = x; fw = f;
 end
 
-
-
 %==========================================================================
 % Assignment of the prime numer used by the method:
 Myprime = nextprime(10^6);