Feature allow for aggregated input to create a clvdata object (cbs)

[bachmannpatrick]

Currently clvdata() requires individual transaction data as input. In some use cases an option to create a clvdata object directly from aggregated data can be very helpful: the cbs table (x, t.x, T.cal) is created manually by the user.

Note: It will be necessary to also adapt summary() and plot() as the they require transactional data that is not aggregated for some statistics/plots.

[bachmannpatrick]

Also consider the option the add weekly/monthly/yearly aggregated data:

Id	Month/year	x	Sales
123456	Jan 2019	13	563.47
123456	Feb 2019	8	368.11

[pschil]

Does using period aggregated data require that the LL is changed to use interval-censored data?
See Bruce Hardie here about pnbd

[bachmannpatrick]

Does using period aggregated data require that the LL is changed to use interval-censored data?
See Bruce Hardie here about pnbd

Yes.
However, there is also the "easy way", where it only affects data preparation. In the end we need a cbs for the LL. The problem is that the end-user would need to provide the date of the first and last transaction.