private void lookupPathFilter() {
SaveableData sval = data.getInheritableValue(prefix, "Earned_Value//Path_Filter");
if (sval == null) sval = data.getInheritableValue(prefix, "Earned_Value_Path_Filter");
SimpleData val = (sval == null ? null : sval.getSimpleValue());
parameters.put(PATH_FILTER_PARAM, val == null ? "" : val.format());
sval = data.getInheritableValue(prefix, "Earned_Value//Merged_Path_Filter");
if (sval == null) sval = data.getInheritableValue(prefix, "Earned_Value_Merged_Path_Filter");
val = (sval == null ? null : sval.getSimpleValue());
parameters.put(MERGED_PATH_FILTER_PARAM, val == null ? "" : val.format());