Further discussion on this item should take place in this topic.
[edit]A second zip file has now been provided, courtesy of Stéphane Grimaud, which contains .wid examples[/edit] TrendAnalysis.zip (70.0 KB) Linear_regression_slope.zip (28.0 KB)
Yes it is. It’s a zip file containing :
1/ Linear_regression_slope.wid : with a graph + calcul tab of a linear regression slope
2/ Linear_regression_slope_help.txt : help about the used variables