“Some people analyze data which comes from statistical surveys. In these datasets are often used so-called "analytic weights" utilizing to change the structure of examined research samples. Unfortunately, there is not easy way to use mentioned "analytic weights" in standard Excel functions.
It is an especially complicated problem when there is a need to count such statistical measures as percentiles, regression or other measures which must be counted by using individual, non-aggreaged elements of datasets.
Maybe, You (dear Microsoft Excel Team) can create a set of formula which will be able to include these "weights" in calculations ???”