topic Re: Determine Decimal DIGIT of Variable? in SAS Programming

Determine Decimal DIGIT of Variable?

ertr — Thu, 09 Feb 2017 14:59:34 GMT

Hi everyone,

I try to determine decimal digit of my variables which has fractional number. I have a sample data set as below and my desired output also as below. I don't want to round variiables's values, I just want to cut the decimal part when it comes 6th digit on decimal part.

Thank you,

Data Sample;
Input Fractional;
Datalines;
1.12345678
2.87654321
3.56781234
4.24135768
5
;
Run;
Data Want;
Set Sample;
Decimal=Round(Fractional,.000001);
Run;

DESIRED

Re: Determine Decimal DIGIT of Variable?

ErikLund_Jensen — Thu, 09 Feb 2017 15:11:19 GMT

Not elegant, but simple and working:

Decimal=floor(Fractional*1000000)/1000000;

Re: Determine Decimal DIGIT of Variable?

data_null__ — Thu, 09 Feb 2017 15:12:02 GMT

Decimal6=Int(fractional*1e6)/1e6;

Re: Determine Decimal DIGIT of Variable?

ertr — Thu, 09 Feb 2017 15:19:28 GMT

Thank you,

Could you give more information about 1e6, please?

Re: Determine Decimal DIGIT of Variable?

ballardw — Thu, 09 Feb 2017 15:25:05 GMT

Maybe the easiest is just to pick an appropriate fixed decimal format;

Data Sample;
Input Fractional;
put (Fractional Fractional Fractional) (f10.2 f10.4 f10.6);
Datalines;
1.12345678
2.87654321
3.56781234
4.24135768
5
;
Run;

If you already have the data set and values then just use the desired format for print/report/ other procedure. Then the

Re: Determine Decimal DIGIT of Variable?

FriedEgg — Thu, 09 Feb 2017 15:27:24 GMT

It's scientific notation, 1e6=1000000

In scientific notation, the number before the E is multiplied by the power of ten that is indicated by the number after the E. For example, 2E4 is the same as 2x104 or 20,000. For numeric constants larger than (1032 )-1, you must use scientific notation. Additional examples follow:

http://support.sas.com/documentation/cdl/en/lrcon/62955/HTML/default/viewer.htm#a000780334.htm