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07-08-2016 04:46 PM

Hello!

I have a variable which is a string (currently numeric, though I imagine it might be best to change this to a character format) of numbers. I need to create a flag for any responses that have an odd number of characters. This is not a flag for odd numbers but for the number of characters. I need this for each respondent and not for one individual.

My question: How can I create a code for counting the number of characters in a string? (E.g. 102 = 3, 10879 = 5, etc.) From there, I can create the flag. For some reason I am just struggling with finding the right code for counting what I need.

Thanks!

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Solution

07-11-2016
10:31 AM

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Posted in reply to Krysia24

07-09-2016 11:48 AM

Math to the rescue!

```
/* Assuming the numbers are positive integers */
data have;
input number;
datalines;
102
10879
23
543
12
;
data want;
set have;
digits = 1 + int(log10(number));
oddDigits = mod(digits, 2);
run;
proc print; run;
```

PG

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Posted in reply to Krysia24

07-08-2016 05:27 PM

Hi,

Please try this.

data have;

input number;

datalines;

102

10879

23

543

12

;

data want;

set have;

length flag $8.;

if mod(length(strip(put(number, 8.))),2) ne 0 then flag='odd';

else flag='even';

run;

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Posted in reply to Krysia24

07-08-2016 05:57 PM

Functions to the rescue!

Length provides the length of the string.

Mod(num,2) = 0 can be used to test if a number is even or odd. If a number is divisible by 2 it's even otherwise odd.

The code from @stat_sas looks correct.

Solution

07-11-2016
10:31 AM

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Posted in reply to Krysia24

07-09-2016 11:48 AM

Math to the rescue!

```
/* Assuming the numbers are positive integers */
data have;
input number;
datalines;
102
10879
23
543
12
;
data want;
set have;
digits = 1 + int(log10(number));
oddDigits = mod(digits, 2);
run;
proc print; run;
```

PG

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Posted in reply to PGStats

07-11-2016 10:31 AM

Thank you so much - this is exactly what I needed.