read error column only for points

src/gui_qt/io/asciireader.py

@@ -204,6 +204,10 @@ class QAsciiReader(QtWidgets.QDialog, Ui_ascii_reader):
         except ValueError:
             y_err = None
 
+        mode = self.buttonGroup.checkedButton().text()
+        if mode != 'Points':
+            y_err = None
+
         col_header = None
         if self.column_checkBox.isChecked():
             col_header = []
@@ -221,7 +225,7 @@ class QAsciiReader(QtWidgets.QDialog, Ui_ascii_reader):
                 x=x,
                 y=y,
                 yerr=y_err,
-                mode=self.buttonGroup.checkedButton().text(),
+                mode=mode,
                 col_names=col_header,
                 num_value=self.get_numerical_value(),
             )