topic Formatting numbers. in SAS Programming

Formatting numbers.

thepushkarsingh — Wed, 28 Feb 2018 18:42:40 GMT

Perhaps it quite simple, but I need to easily convert my data in multiples of 100 only like 619 should be 600, 754 should be 700,1238976 should be 1238900. Any easy fix? Thanks a lot.

Re: Formatting numbers.

Reeza — Wed, 28 Feb 2018 18:46:05 GMT

Is the round down what you want? or just round?

If it's ROUND, then use the ROUND() Function with 100 as the second parameter.

If it's floor, you need to divide by 100, floor it, and then multiply by 100.

answer1 = round(original, 100);
answer2 = floor(original/100)*100;

Re: Formatting numbers.

rajeshalwayswel — Wed, 28 Feb 2018 22:59:44 GMT

I have small doubt on the

answer1 = round(619, 100);
answer1=600;

how we are getting 600 can someone explain it...

can you please explain it..

I have understand in this method
x=round(223.456,.3);

Result:

x=223.5

In the above I have understand that 

first step: 223.456*0.3=67.0368
second step :round(67.0368)=67.368
third step : 67.368/0.3=223.5

Re: Formatting numbers.

Reeza — Thu, 01 Mar 2018 02:36:54 GMT

@rajeshalwayswel

Rounds the first argument to the nearest multiple of the second argument, or to the nearest integer when the second argument is omitted.

So in 619, the nearest 100 is 600 and 700. Because 600 is closer, it's rounded to 600.

Your interpretation/logic appears incorrect - run the code.

first step: 223.456*0.3=67.0368
second step :round(67.0368)=67.368 -> This would result in 67, not 67.368.
third step : 67.368/0.3=223.5

My interpretation was always, figure out how many exact values of the second parameter fit in and then round up or down as necessary.

The logic in my head is, assuming ROUND(P1, P2) is equivalent to:

Value = round(P1/P2,1) * P2 ;

At least for positive values. Here's some demo code that can help illustrate this.

data demo;
 x=round(223.456, .3);
 y=223.456/0.3;
 z=round(y, 1);
 w=z*0.3;
 x1=round(67.0368);
 test=round(223.456/0.3)*0.3;
 test2=round(619, 100);
run;

@rajeshalwayswel wrote:

I have small doubt on the

answer1 = round(619, 100);
answer1=600;

how we are getting 600 can someone explain it...

can you please explain it..

I have understand in this method
x=round(223.456,.3);

Result:

x=223.5

In the above I have understand that 

first step: 223.456*0.3=67.0368
second step :round(67.0368)=67.368
third step : 67.368/0.3=223.5

Re: Formatting numbers.

rajeshalwayswel — Thu, 01 Mar 2018 17:36:34 GMT

Thank you.. It very clear..