Update bb_swi_reg

bb_structural_pipeline/bb_swi_reg

@@ -11,8 +11,18 @@ fi
 cd $1/SWI
 
 T1dir="../T1/"
-complex_phase=$(cat complex_phase.txt)
-num_coils=$(cat num_coils.txt)
+
+if [ -f complex_phase.txt ] ; then
+  complex_phase=$(cat complex_phase.txt)
+else
+  echo 0 > complex_phase.txt
+fi
+
+if [ -f num_coils.txt ] ; then
+  num_coils=$(cat num_coils.txt)
+else
+  echo 32 > num_coils.txt
+fi
 
 if [ -d $T1dir/unusable ] ; then
     T1dir="../T1/unusable/"