Aggregation, select max date, count

[AndreyBel]

Hello colleagues,

I'm newcomer in Qlik Sence and would appreciate your help.

I have data on employees married status (bellow) at the end of each month. If someone terminate working in company, his ID is not reflected at the end of following monthes.

card_id	month	marital_status
1	31/01/2015	s
2	31/01/2015	s
3	31/01/2015	m
1	28/02/2015	s
2	28/02/2015	s
1	31/03/2015	s
2	31/03/2015	m

I want to reflect in KPI chart number of married persons based on the last available information on each employee.

I suppose following algorithm:

1) Aggregate data on card_id field

2) Select record with max date

3) Count({$<marital_status={"m"}>} card_id)

Could you help me to translate this ides in lines of code?

Thanks in advance,

Andrei

[marinadorcassio1]

Hi Andrei,

I think, 2 solutions :

1) Create a seconde table with last record of each employee

T1_lastrec:

LOAD

     card_id,

     max(month) as last_month

From [source]

group by card_id;

inner join (T1_lastrec)

LOAD

     card_id,

     month as last_month,

     marital_status as last_marital_status

From [source];

Then Count({$<last_marital_status={"m"}>} card_id) should work.

2) Just adapt you measure like this : Count({$<month={$(=max(month))}, marital_status={"m"}>} card_id)

Hope it'll help,

Regards,

Marina

[ogautier62 · Accepted solution]

Hi

card_id as dimension

and expression last =  aggr(FirstSortedValue(marital_status,-month),card_id)

and to have total count in a text box :

=sum(if(aggr(FirstSortedValue(marital_status,-month),card_id)='m',1))

regards

[manoj217]

this will work to get the count of married ids are available in the data

Count({$<marital_status={"m"}>} card_id)

[ogautier62]

If I've well understood,

it's the last marital status (most recent)

with your formula you count all marital 'm' status

[AndreyBel]

Olivier, thank you for help!

Regards,

Andrei