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Babloo
Rhodochrosite | Level 12

I would like to understand how to identify the quarter difference between two dates. I knew that it can achieved by intck function but I'm not certain how to accomplish with that function.

 

Suppose I've the data as given below. Both the variables are numeric.

 

Start_qtr End_qtr
2017-03 2017-09
2017-06 2018-03

 

Now I want to calculate quarter difference by creating the new variable 'Qtr_diff' and it should have the value of difference between Start_qtr and End_qtr.

 

Start_qtr End_qtr Qtr_Diff
2017-03 2017-09 2
2017-06 2018-03 3
3 REPLIES 3
novinosrin
Tourmaline | Level 20
Qtr_Diff=intck('qtr', start_qtr, end_qtr);
mkeintz
PROC Star

Are you talking about calendar quarters, or fiscal quarters?    I ask this because, for a company whose fiscal year ends in (say) october, then the quarter difference between Jan (end of fiscal Q1) and Feb (start of fiscal Q2) is 1. 

 

In this case you would need to adjust the argument ('QTR') in intck('qtr',begdate,enddate).  If, say you have a variable fyend_month (fiscal year end month, with values 1 to 12), you could: 


  interval==catx('.','qtr',mod(fyend_month,3)+1);
  nqtr=intck(interval,begdate,enddate);

This generates intervals of 'QTR.1' (equivalent to 'QTR'), 'QTR.2', or 'QTR.3'. These specify quarters as beginning in the first month of the calendar quarter ('qtr.1'), beginning in the second month of the calendar quarter ('qtr.2'), or the third ('qtr.3').

 

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Babloo
Rhodochrosite | Level 12
Source data is connected with only calendar quarter.

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