To get values for current and previous dates selected

[Saurabh07]

Hello Gurus,

I have a requirement here. Below is the data with me:

Country	cal_date	Value
India	01-01-2020	26
India	01-02-2020	93
India	01-03-2020	33
India	01-04-2020	20
Japan	01-01-2020	34
Japan	01-02-2020	76
Japan	01-03-2020	22
Japan	01-04-2020	26
China	01-01-2020	100
China	01-02-2020	72
China	01-03-2020	33
China	01-04-2020	34
Germany	01-01-2020	63
Germany	01-02-2020	19
Germany	01-03-2020	49
Germany	01-04-2020	10

I need  a pivot table in Qlik app, with columns Country and difference Value. I have a filter with date at top and if I select '01-04-2020' in filter the difference Value for each country should give me the difference of value for '01-04-2020' and '01-03-2020'.  For eg, if we consider Germany, the difference value should give 39 (i.e. 49-10).

I am using this expression, but it doesn't work

'Sum({<Date = {"$(=Date(max(cal_date,1)))"}>} Value) - Sum({<Date = {"$(=Date(max(cal_date,2)))"}>} Value)'

Any help here would be highly appreciated.

[chrismarlow]

Hi,

You could try;

Sum({<cal_date= {'$(=Date(Max({<cal_date={"<$(=getfieldselections(cal_date))"}>} cal_date)))'}>} Value)-
Sum({<cal_date= {"$(=Date(max(cal_date)))"}>} Value)

Cheers,

Chris.