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- Print number in Decreasing order without proc sort

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11-15-2016 09:32 AM

I have to print all the numbers less than 500 which is divisible by 7 in decreasing order WITHOUT using PROC SORT.

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Solution

11-15-2016
09:52 AM

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11-15-2016 09:39 AM - edited 11-15-2016 09:42 AM

```
data test;
do i = 500 to 1 by -1;
if mod(i,7) = 0 then output;
end;
run;
proc print data=test noobs;
run;
```

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Maxims of Maximally Efficient SAS Programmers

Maxims of Maximally Efficient SAS Programmers

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11-15-2016 09:39 AM

Why are you not allowed to use proc sort?

Are you allowed to use proc sort inside a call execute statement in the data step?

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11-15-2016 09:42 AM

To find some other method to solve this problem .

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11-15-2016 09:42 AM

Proc sort is not been taught in class yet.

Solution

11-15-2016
09:52 AM

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11-15-2016 09:39 AM - edited 11-15-2016 09:42 AM

```
data test;
do i = 500 to 1 by -1;
if mod(i,7) = 0 then output;
end;
run;
proc print data=test noobs;
run;
```

---------------------------------------------------------------------------------------------

Maxims of Maximally Efficient SAS Programmers

Maxims of Maximally Efficient SAS Programmers

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11-15-2016 09:46 AM

Thank You sir, I was trying this way but I was not knowing about "By -1" thing. and I guess we can increase or decrease by any value by using "by -/+n" step, right?

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11-15-2016 09:50 AM

abhaykumar wrote:

Thank You sir, I was trying this way but I was not knowing about "By -1" thing. and I guess we can increase or decrease by any value by using "by -/+n" step, right?

Correct. You can even use values with fractions.

Like

```
data test;
do i = 10 to 0 by -1.5;
output;
end;
run;
```

---------------------------------------------------------------------------------------------

Maxims of Maximally Efficient SAS Programmers

Maxims of Maximally Efficient SAS Programmers