minor fixes

src/gui_qt/fit/fit_forms.py

@@ -118,6 +118,7 @@ class FitModelWidget(QtWidgets.QWidget, Ui_FitParameter):
             is_text = False
         except ValueError:
             is_text = True
+            self.global_checkbox.setCheckState(False)
 
         self.set_fixed(is_text)
 

src/gui_qt/fit/fit_parameter.py

@@ -237,13 +237,13 @@ class QFitParameterWidget(QtWidgets.QWidget, Ui_FormFit):
 
             for i, (p_i, g) in enumerate(zip(parameter, self.global_parameter)):
                 if isinstance(g, FitModelWidget):
-                    if (p_i is None) and (not is_global[i]):
+                    if (p_i is None) or is_global[i]:
                         # set has no oen value
                         p.append(param_general[i].copy())
                     else:
                         lb, ub = bds[i]
                         try:
-                            if not (lb < p[i] < ub):
+                            if not (lb < p_i < ub):
                                 raise ValueError(f'Parameter {g.name} is outside bounds ({lb}, {ub})')
                         except TypeError:
                             pass

src/nmreval/fit/parameter.py

@@ -57,14 +57,7 @@ class Parameters(dict):
         parameter.namespace = self.namespace
         parameter.eval_allowed = True
 
-        # look for variables in expression and replace with valid names
-        for p in self.values():
-            if p._expr is not None:
-                expression = p._expr
-                for n, k in self._mapping.items():
-                    expression = re.sub(re.escape(n), k, expression)
-
-                p._expr = expression
+        self.update_namespace()
 
     def replace_parameter(self, key_out: str, key_in: str, parameter: Parameter):
         # print('replace par', key_out, key_in, parameter)
@@ -79,15 +72,6 @@ class Parameters(dict):
         if key_out in self.namespace:
             del self.namespace[key_out]
 
-        for p in self.values():
-            try:
-                p.value
-            except NameError:
-                expression = p._expr_disp
-                for n, k in self._mapping.items():
-                    expression = re.sub(re.escape(n), k, expression)
-                p._expr = expression
-
     def fix(self):
         for v in self.keys():
             v._value = v.value
@@ -107,6 +91,17 @@ class Parameters(dict):
     def get_state(self):
         return {k: v.get_state() for k, v in self.items()}
 
+    def update_namespace(self):
+        for p in self.values():
+            try:
+                p.value
+            except NameError:
+                expression = p._expr_disp
+                for n, k in self._mapping.items():
+                    expression, num_replaced = re.subn(re.escape(n), k, expression)
+
+                p._expr = expression
+
 
 class Parameter:
     """