For example and while.
Sas age calculation floor.
Based on the outputs the calculation using yrdif seems to be a good option.
1 like 14 replies 14.
The precision of the memberdateofbirth a stored sas date variable was causing the age15 variable to resolve to 18 with no decimal places.
To compute age using a date of birth and the current.
The approach is to first calculate the number of completed months between the two dates and then divide by 12.
In mathematics and computer science the floor function is the function that takes as input a real number and gives as output the greatest integer less than or equal to denoted or similarly the ceiling function maps to the least integer greater than or equal to denoted or.
For example the following lines.
Or you could ask your colleagues in the discussion forums as i noticed some people doing just.
Will cause the following message to be placed on the log.
Calculate age from birth date posted 02 07 2018 01 07 pm 12008.
How can you reliably compute the age of someone or something.
For an adult study all of these approaches in calculating age seem to be ok.
Sure you could write your own function for calculating such things as i suggested 0 1753424658 years ago.
Susan lamented the subtle issues using the yrdif function exactly 1 0356164384 years ago.
There is also an article in sas blog discussing this.
The use of yrdif function is detailed in the sas online document.
Age intck year dob eventdate continuous hi i was wondering if two methods above have the same function on calculating age based on dob.
The macro is used in a sas data step as follows.
Age floor yrdif datepart birth date today age view solution in original post.
Unlike the floorz function the floor function fuzzes the result.
The floorz function does not fuzz the result.
In sas date type variables contain the number of days between january 1 1960 and the date specified.
Age int yrdif birth date ending date actual.
If the argument is within 1e 12 of an integer the floor function fuzzes the result to be equal to that integer.
The simple way using 365 25 as divider is actually a pretty good option.
