We had that once, in an MSDOS-era program called Javelin ( https://en.wikipedia.org/wiki/Javelin_Software https://en.wikipedia.org/wiki/Javelin_Software ): "Un

We had that once, in an MSDOS-era program called Javelin ( https://en.wikipedia.org/wiki/Javelin_Software https://en.wikipedia.org/wiki/Javelin_Software ): "Unlike models in a spreadsheet, Javelin models are built on objects called variables, not on data in cells of a report. For example, a time series, or any variable, is an object in itself, not a collection of cells which happen to appear in a row or column... Calculations are performed on these objects, as opposed to a range of cells, so adding two time series automatically aligns them in calendar time, or in a user-defined time frame. Data are independent of worksheets..." That was forty years ago and as far as I know there hasn't been a program that works the same way since. Perhaps someone could reverse-engineer it (the jav.exe file is only 56,448 bytes!)