THIS 22.1

APPENDIX G - The ERROR Calculation

APPENDIX G - The ERROR Calculation

The ERROR function outputs a number of values to indicate the degree of correlation between 2 curves. The function requires two input curves

  • A reference curve to compare against ( the first curve selected )
  • The curve to compare against the reference

Once 2 curves have been selected the a check is carries out to see if the two curves contain the same number of points and if the range of x-axis values the same for the two curves. If any inconsistencies are found then a warning message is generated.

The following values are then calculated

Maximum difference and time of variation
Maximum difference as a %age of the reference value at the same time
Maximum difference as a %age of the peak reference value
Average difference
Average difference as a %age of the peak reference value
T/HIS Regression coefficient.
This is a value between 0 and 1 where 1 means 100% correlation