OK, they (me) are called newbies for a reason. What is the answer to the question “so what does that make the integer called ‘readings’??” that was embedded in my post?
If my question doesn’t make sense, e.g. “why is the offspring of a lion called a potato?” then tell me and suggest what question I should be asking 
And what is a fricking code tag? I’m a newbie, remember??
Al