How do I check whether a string is empty? Or if a string is only full of NOVALUE/Null values?
For example, if I have a channel that malfunctioned and didn't record any data, the whole channel is empty/null/novalue. And I want to be able to delete that bad dataset. Below is some pseudo-code of what I'm trying to do:
i=1
Do while i <= GroupNumber
If String is empty then
Call GroupDel(i) 'delete current group
else
i = i +1 'move on and check next group for bad data
end if
loop