topic Trimestral date computation in QlikView

Trimestral date computation

marco_puccetti — Thu, 24 Sep 2015 10:21:08 GMT

Hello i have a month sequence and i need to get the trimestral interval series for a linear graph, which functions can i use in the computed dimension field?

Thanks

Marco

Re: Trimestral date computation

alexandros17 — Thu, 24 Sep 2015 10:23:44 GMT

Add a field "Quarter" computed according month value so months between Jan and Mar belongs to quarter 1 and so on

Then use the new field in your analysis

Re: Trimestral date computation

SreeniJD — Thu, 24 Sep 2015 10:32:07 GMT

Try this,

Year(date_field) as Year,

Month(date_field) as Month,

'Q' & Ceil(date_field/3) as Quarter

Use this Quarter for your analysis!

HTH

Sreeni

Re: Trimestral date computation

marco_puccetti — Thu, 24 Sep 2015 10:43:25 GMT

Doing so, i get a list of number, but to get the date and converting it with the date function, i get not exact dates.

How can i get the correct dates?

Thanks

Marco

Re: Trimestral date computation

SreeniJD — Thu, 24 Sep 2015 10:52:00 GMT

Hi Marco,

can you share some sample data for better analysis

Thanks,

Sreeni

Re: Trimestral date computation

marco_puccetti — Thu, 24 Sep 2015 11:02:36 GMT

Simpy i have a list of data and i need to get in a linear graph a sequence of trimestral dates.

In the screeshot i report what i get using what you have reported.

What can be done to obtain what i need?

Thanks

Marco

Re: Trimestral date computation

swuehl — Thu, 24 Sep 2015 11:12:05 GMT

Try

LOAD

[Data Decorrenza],

QuarterStart([Data Decorrenza]) as [Trimestre di Decorrenza],

Re: Trimestral date computation

marco_puccetti — Thu, 24 Sep 2015 12:41:24 GMT

Applied to the first date 07/11/2009 i get 01/10/2009, how does the function works?

Thanks

Marco

Re: Trimestral date computation

swuehl — Thu, 24 Sep 2015 12:48:46 GMT

QuarterStart(date [, shift = 0 [, first_month_of_year = 1]])

Returns a value corresponding to a timestamp with the first millisecond of the quarter containing date. The default output format will be the DateFormat set in the script. Shift is an integer, where the value 0 indicates the quarter which contains date. Negative values in shift indicate preceding quarters and positive values indicate succeeding quarters. If you want to work with (fiscal) years not starting in January, indicate a value between 2 and 12 in first_month_of_year.

Examples:

quarterstart ( '2005-10-29' ) returns '2005-10-01' with an underlying numeric value corresponding to '2005-10-01 00:00:00.000'

quarterstart ( '2005-10-29', -1 ) returns '2005-07-01' with an underlying numeric value corresponding to '2005-07-01 00:00:00.000'

quarterstart ( '2005-10-29', 0, 3 ) returns '2005-09-01' with an underlying numeric value corresponding to '2005-09-01 00:00:00.000'

Re: Trimestral date computation

marco_puccetti — Thu, 24 Sep 2015 13:09:30 GMT

Ok the quarter can be usefull to compute the first date to use in an aggregation in order to create the trimestral date series.

At this point what could i use to create the trimestral date series variable within the script to insert in the graph?

Thanks

Marco

Re: Trimestral date computation

swuehl — Thu, 24 Sep 2015 13:11:10 GMT

Hm, I've already posted the script code above in my first post.