For many data sets a key analysis is the construction of (nested) pivot tables. Indeed I have constructed many of these. There are generally two activities which immediately follow from the construction of a 'Pivot Table':
The PIP tool, takes a local csv file and allows you to add as many depths of filter as you wish, it then builds a zoomable tree diagram of the data, so you can tell where the numbers came from. PIP does NOT share the data with our server, and only saves the D3 tree on your system if YOU request it.
The PIP tool. Example data sets, download and load local file into PIP:
If you'd like your business's complex pivot views resolved with this clarity please contact firstname.lastname@example.org