Trend Analysis of Indices

Hotkey: i
Menu: Image > Indices Trend
Context menu: Indices Trend

This image shows the result of the statistical trend analysis of the global indices ( details about the calculation method)


4 numbers for each index are shown.

Change per year: slope of the regression line of the index values
(in brackets): change probability
p > ..% = percentage
n.s. = not significant = p < 90%

Total change: difference between start point and end point of the regression line

Start: Start value of the index (start point of the regression line)

End: End value of the index (end point of the regression line)


CONCLUSION: The trend of the index MD shows the general trend. The spread indices PSD, CPSD (or LV, CLV) increase if the cumulative curve (Bebié) turns steeper. By the ground effect it can also decrease in progressive cases. The index FD shows the general trend with another scaling.   -- All global changes are better shown by the Percentile Plot. -- This image type contains no spatial information. For a complete evaluation, topographical trend analysis (SuperTrend, GATT) are needed in addition.