topic Re: Adding Difference to Individual Observation of a data set in SAS Programming

Adding Difference to Individual Observation of a data set

OniMoni — Sun, 15 Jul 2012 02:25:42 GMT

DATA Deposits;

input Acctno type $ Balance;

cards;

1 Demand 10

2 Time 20

3 Demand 10

4 Saving 30

5 Demand 10

6 Saving 30

7 Time 20

8 Saving 30

9 Demand 10

;

Run;

%let Diff_DD = 1;

%let Diff_SD = 2;

%let Diff_TD = 3;

I need o add Diff_DD value to the "1 Demand 10"

Diff_TD value to the "2 Time 20"

Diff_SD value to the "4 Saving 30"

Please help

Re: Adding Difference to Individual Observation of a data set

andreas_lds — Mon, 16 Jul 2012 07:47:34 GMT

"Add" to what? Do you need a new variable? Please post the dataset you want to create.

Re: Adding Difference to Individual Observation of a data set

rajat_sas — Fri, 20 Jul 2012 13:23:22 GMT

Do you want to concatenate the macro variable value to concatenation of other 3 variables ?

Re: Adding Difference to Individual Observation of a data set

tish — Fri, 20 Jul 2012 15:47:22 GMT

Declare the macro variables first, then add the difference variable in the same DATA step:

%let Diff_DD = 1;

%let Diff_SD = 2;

%let Diff_TD = 3;

data deposits;

input acctno type $ balance;

select (acctno);

when (1) difference = &Diff_DD;

when (2) difference = &Diff_SD;

when (4) difference = &Diff_TD;

otherwise;

end;

cards;

{etc}

;

run;

Re: Adding Difference to Individual Observation of a data set

OniMoni — Sat, 11 Aug 2012 06:04:25 GMT

Guys Thank you for you reviews in this issue, I was in vacation so sorry for late reply.

@ andreas_lds , I need to add the difference to each account for example The new data set must look like as bellow

1 Demand 11

2 Time 20

3 Demand 10

4 Saving 32

5 Demand 10

6 Saving 30

7 Time 23

8 Saving 30

9 Demand 10

;

Run;

@ rajat.sas you may now understand what actually is the requirement.

Thank you guys, I appreciate your effort to help..

looking Forward

Re: Adding Difference to Individual Observation of a data set

art297 — Sat, 11 Aug 2012 14:00:33 GMT

Why are the values only added some of the time? We can see that you want to sum with the three additional values for demand, time and saving, but you haven't given any clue as to why you are only doing it with certain records.

Re: Adding Difference to Individual Observation of a data set

Astounding — Sun, 12 Aug 2012 13:10:25 GMT

If you want to apply these changes on every observation, you can do it with one additional statement:

balance = balance + &DIFF_DD * (type='Demand') + &DIFF_SD * (type='Saving') + &DIFF_TD * (type='Time');

As others have noted, your intention isn't 100% clear, even based on your revised posting. Why is &DIFF_TD added to "7 TIme 23" but not to "2 Time 20" ? Based on your answer, there will likely be further coding necessary. It won't be difficult, but it will require a clear understanding of what you are trying to achieve.

Good luck.

Re: Adding Difference to Individual Observation of a data set

joehinson — Mon, 13 Aug 2012 17:12:26 GMT

OniMoni, indeed answering Art Tabachneck's question would clear things up.

In the meantime, here is an ever shorter form of Astounding's solution, even making the macro variable unnecessary:

balance = balance + (whichc(type, 'Demand', 'Saving', 'Time'));

Cheers.