#Calculate dob in sas university edition how to#

Review the assignment statement that is used to calculate the values for the variable age_intck. Review the output to convince yourself that age and days are indeed calculated as described.

When you are satisfied that you understand the two functions, launch and run the SAS program. The other method is a method that is sometimes used by accountants. The two possible methods in calculating the number of days between two dates using the datdif( ) function are:Īgain, the 'act/act' method is the method that most people would consider to be the most accurate. Here, 'act/act' tells SAS to calculate the difference using the actual number of days between the two dates.

#Calculate dob in sas university edition how to#

The third argument of the datdif( ) function, which must be enclosed in single quotes, tells SAS how to calculate the difference. Here, the start date is wt_date1 and the end date is wt_date2. The first and second arguments of the datdif( ) function tell SAS, respectively, the start and end date of the desired interval. Now, review the assignment statement that is used to calculate the values for the variable days. The other methods are methods that are sometimes used by accountants.

The 'act/act' method is the method that most people would consider to be the most accurate.

'act/365' uses the actual number of days between dates in calculating the number of years (calculated by the number of days divided by 365).

'act/360' uses the actual number of days between dates in calculating the number of years (calculated by the number of days divided by 360).

'30/360' specifies a 30-day month and a 360-day year.

'act/act' uses the actual number of days and years between two dates.

The four possible methods in calculating the number of years between two dates using the yrdif( ) function are: Here, 'act/act' tells SAS to calculate the difference using the actual number of years between the two dates. The third argument of the yrdif( ) function, which must be enclosed in single quotes, tells SAS how to calculate the difference.

Here, the start date is b_date and the end date is wt_date1. The first and second arguments of the yrdif( ) function tell SAS, respectively, the start and end date of the desired interval. Review the assignment statement that is used to calculate the values for the variable age. Let's look at an example in which these five functions are used. So, for example, the SAS Julian date for Januis 2008021. The value of ddd must be between 001 and 365 (or 366 for a leap year). You don't need to put anything in between the parentheses for those two functions.Ī Julian date is defined in SAS as a date in the form yyddd or yyyyddd, where yy or yyyy is a two-digit or four-digit integer that represents the year and ddd is the number of the day of the year. That is, they both return the current date as defined as the date on which the SAS program is executed. The date( ) and today( ) functions are equivalent.

yyq( y, q) returns a SAS date value from the given year ( y) and quarter ( q) 1, 2, 3, or 4.

datejul( juldate) converts a Julian date ( juldate) to a SAS date value.

mdy( m, d, y) returns a SAS date value from the given month ( m), day ( d), and year ( y) values.

today( ) returns today's date as a SAS date value.

date( ) returns today's date as a SAS date value.

The functions that can be used to create date values include: