Create logic for control of quarters

[Freppa]

Hello,

I have some trouble understanding how to set up some logic based on a list I have. 

The logic from the list, shown below, should be that it should be sequential, i.e 2016Q1-Q4, but if let's say, 2016Q1 and 2016Q3 is missing it should give an output that they are missing.

data test;
input x;
cards;
2016Q2
2016Q4
2017Q1
2017Q2
2017Q3
2017Q4
2018Q1
;
run;

The next step I am trying to figure out is that if I want to produce the next report (2018Q2) it should check that [CurrentYear][Q-1] and [CurrentYear-1][Q4] exists, if not it should give an output on what is missing.

Best regards,

Fredrik

[RW9]

First, set your data to be the correct format:

input quarter yyq9.;

From:

http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a000204480.htm

Something like:

data test;
  informat x yyq9.;
  format x yyq9.;
  input x;
cards;
2016Q2
2016Q4
2017Q1
2017Q2
2017Q3
2017Q4
2018Q1
;
run;

data want;
  set test;
  if intck('qtr',lag(x),x) ne 1 then output;
run;

Not sure what exactly you want as output, so just guessed.

[ballardw]

---

@Freppa wrote:

Hello,

I have some trouble understanding how to set up some logic based on a list I have. 

The logic from the list, shown below, should be that it should be sequential, i.e 2016Q1-Q4, but if let's say, 2016Q1 and 2016Q3 is missing it should give an output that they are missing.

data test;
input x;
cards;
2016Q2
2016Q4
2017Q1
2017Q2
2017Q3
2017Q4
2018Q1
;
run;

The next step I am trying to figure out is that if I want to produce the next report (2018Q2) it should check that [CurrentYear][Q-1] and [CurrentYear-1][Q4] exists, if not it should give an output on what is missing.

Best regards,

Fredrik

---

It really helps to show exactly what you are expecting for output.

So I am guessing  perhaps you want a message in the log about missing?

data test;
  informat x yyq9.;
  format x yyq9.;
  input x;
  retain lastx;
  format lastx yyq9.;
  if intck('quarter',lastx,x)>1 then put "WARNING: Missing quarter between " lastx yyq9. ' and ' x yyq9.;
  lastx=x;
  drop lastx  ;
cards;
2016Q2
2016Q4
2017Q1
2017Q2
2017Q3
2017Q4
2018Q1
;
run;

And you need to provide more information related to "next report". Compare what and where? In another data set?