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Posted: **Wed Jun 29, 2022 8:01 am**

Hi,

How can I find the start-period that is used in the current sample?

For example, when using the commands

smpl 2020:3 2020

on a dated workfile on a quarterly, monthly, weekly, or daily frequency, I want to fetch the period "3" of that current sample. How can I do this in a robust way?

I believe I can use the command on a quarterly frequency:

Code: Select all


%tmp = @otods(1)
!start = @datepart(@dateval(%tmp), "Q")

but it does not work well on other frequencies. Any suggestions for a robust code that works across different frequencies?
Thomas

Posted: **Wed Jun 29, 2022 8:36 am**

Not sure I follow.

Posted: **Thu Jun 30, 2022 6:36 am**

Hi,

I am interested in the week number, month or quarter of the first observation in the current smpl. for example, in the following I want the scalar !startf to show the number 3 at all frequencies:

Code: Select all

for %f q m w
	wfcreate(wf=1) {%f} 2015 2025
	smpl 2020:3 2020
		%tmp = @otods(1)
		%startf=@mid(%tmp, 6)
		!startf=@val(%startf)
		scalar a{%f} = !startf
		show a{%f}
next

but this does not work for the weekly frequency. how can I write this so that it becomes robust across frequencies?
t

Posted: **Thu Jun 30, 2022 7:57 am**

Code: Select all


%freqtype = %f + %f
if %f="q" then
   	%freqtype = "q"
endif
      
!startf = @datepart(@dateval(%tmp), %freqtype)

Datepart works, its just annoying that the frequency string doesn't match exactly (date functions use "ww" and "mm" for weekly and monthly, respectively).

Posted: **Thu Jun 30, 2022 11:11 pm**

great, thanks!

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