Hello, I'm a new FME user and normaly only work with Tableau. I'm used to create calculations inside Tableau but now I want to do this with FME so I can fill our new datawarehouse.
I've got a dataset with a start date (dd_begin) and an end date (dd_eind). I need to count distinct the customer id's per Month. In Tableau I've created 12 calculations per year. For example, if I want to count the number of unique customers in January 2020 I need below Tableau calculation:
COUNTD(
if [DD_BEGIN] < date(#01-02-2020#) and ([DD_EIND] >= date(#01-01-2020#) or ISNULL([DD_EIND])) then [CLIENTNR] end)
for February 2020 the calculation would be:
COUNTD(
if [DD_BEGIN] < date(#01-03-2020#) and ([DD_EIND] >= date(#01-02-2020#) or ISNULL([DD_EIND])) then [CLIENTNR] end)
And so on and after this I use those 12 calculated fields to create a bar chart for the entire year so every month is visible inside 1 visual in Tableau.
How can I do the same calculations in FME or is there an easier way to get the same data result?
Kind regards,
Richard
