Using Numeric Tolerances with XML Data Compare

XML is often used to represent engineering, scientific, or financial data where numeric values are important. Sometimes small changes in these values are not significant and you want to focus on the values that are. We’ll go through how you can indicate numeric tolerances with XML Data Compare.

Numeric Data

I used the magnetic field calculator from NOAA to determine the magnetic data for my location for two dates one month apart.  This is the result of the comparison:

Marking Insignificant Changes

You might decide that changes in the total intensity are only significant when greater than 5nt.  Adding these lines to the config file gives the result you want: