![]() format combines several older formats into a "super format" that attempts to convert a character string into a date. The following SAS DATA step shows that the ANYDTDTE w. You are assumed to be familiar with data steps for reading data into SAS, and assignment statements for computing new variables. Only the maximum, minimum, and default widths are different. 1/30/20 SAS Date and Date/Time variables SAS provides three different types of clock and calendar variables Date Datetime Time All three types of variables are numeric Date variables: an integer representing the number of days since January 1, 1960. ![]() In each case, the format works like the corresponding English-language format. If the dates are not standardized or you need to read a string like "July 4, 1776", the ANYDTDTE informat is a godsend. Reading dates in data This module will show how to read date variables, use date functions, and use date display formats in SAS. SAS supports international formats that are equivalent to some of the most commonly used English-language date formats. ![]() If your dates are in a specific form, the older informats work great and serve to document that all dates must be in that standard form. ![]() informat is a flexible alternative to older informats such as DATE w., MMDDYY w., and YYMMDD w. For example, the US Independence Day might be represented as "04JUL1776", "", "Jul 4, 1776", or "July 4, 1776."įortunately, the ANYDTDTE informat makes it easy read dates like these into SAS. If you obtain data from web sites, social media, or other unstandardized data sources, you might not know the form of dates in the data. In this presentation, we focus on displaying/outputting SAS dates (formats), reading dates (informats), importing/exporting dates, calculating intervals and differences (functions), and extracting or combining portions of dates (more functions). ![]()
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