topic Re: Round down numbers in pct format in SAS Procedures

Round down numbers in pct format

GreggB — Thu, 09 Apr 2015 18:29:45 GMT

Below is the data step I have which formats each number as a percent. I want to round pct_in_school and pct_in_course down to the nearest ten like so:

78% would be 70%

72% would be 70%

99% would be 90%

data rosters;

set allsets2;

diff = intck('WEEKDAY', entrydate, exitdate);

days_in_school = networkdays(entrydate, exitdate-1, "work.usholidays","holidaydate");

days_in_course = networkdays(dateenrolled, dateleft-1, "work.usholidays","holidaydate");

Pct_in_school=days_in_school/180;

Pct_in_course=days_in_course/180;

format Pct_in_school Pct_in_course percent12.;

run;

Re: Round down numbers in pct format

Reeza — Thu, 09 Apr 2015 18:49:11 GMT

Multiply by 10 to round to number such as 7.8, 7.2, 9.9. Apply the floor function and then convert back to percent by dividing by 10.

Simplifying the math it becomes:

Pct_in_school=floor(days_in_school/18)/10;

Pct_in_course=floor(days_in_course/18)/10;

format Pct_in_school Pct_in_course percent12.;

Re: Round down numbers in pct format

ballardw — Thu, 09 Apr 2015 20:00:24 GMT

And just in case you might like to keep the original value but display use a custom format:

proc format ;

value MyPct

0 -< 0.1 = ' 0%';

0.1 -< 0.2 = ' 10%'

0.2 -< 0.3 = ' 20%'

0.9 -< 1 = ' 90%'

1 = '100%'

;

run;

The spaces are so some procedures can display formatted values in an appropriate sorted appearance.