Spreadsheet
What version of advantage is that? Or is it something that is not
documented? I have version 1.12d. As far as control charts go (I know
that you didn't ask the question, but it is part of the message thread),
control charts are a was of monitoring some process where you have
a point for each data and a running deviation bracketing the data points.
You use these statistical charts to determine if youre process
is out of control. An example would be car wrecks per day in a square mile
in the city. Each day you plot the number of accidents. Over
say a month, the average seems to be about 3 per day. Suddenly, you have
30 accidents in one day. If for a period of time, say a week, was the
average and then it dropped back to 3 per day, would indicate that
something caused this. This type of graph is kind of a watch dog. If
something happens, you go looking for the cause.