When I analyse my project data, Frontier Analyst® shows a message that says the data varies by more than 8 orders of magnitude. What does this mean?
This situation occurs when you have a range of numbers for one of your input or output variables that are very different. For example, you may have one unit with a value of “1”, and another with a value of “1,000,000,000”. The difference between these two numbers is too big to allow proper operation of the software – for the first unit to match the second it would have to improve by over a million percent, and that will cause a problem. This situation most often occurs when you have zero values in your data, and you have used the zero substitution facility to replace zeros. The default replacement value is “0.01”, so this is very small. In this example, with values of many millions, you could set this value to 100 perhaps, and it would perform the appropriate role. It is important to note though that the zero-substitution facility was designed as a quick help to get started, and you will have problems if you have another variable with data ranging from, say, 1 to 10. The zero changed t
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