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is a two-digit or four-digit integer that represents the year.

When w is 7 or more, the date appears with a four-digit year. of course, once thats done, one may turn that into a format using cntlin option and store that in a catalog. Interaction: When w has a value of 5 or 6, the date appears with only the last two digits of the year. The objective is rather straight forward data manipulation. I personally dont see a need for a custom format as such coz its only gonna require another pass. Each day is assigned a specic numeric value, starting from January 1, 1960. HI noling First off, Excellent observation.

In SAS dates are a special case of numeric values. Review the output to convince yourself that the program does as claimed. Title Convert the Dates to SAS Formats Version 0.1.0 Description Converts the dates to different SAS date formats. When you are satisfied you understand the use of the mmddyy informat and the ddmmyy format, launch and run the SAS program. If nothing appears (or alternatively an " s") in a ddmmyy format, as it does here for the date1 variable, SAS will display forward slashes between the month, day and year. The " c" that appears in the format for the date3 variable tells SAS to display colons between the month, day and year. The " b" that appears in the format for the date2 variable tells SAS to display blank spaces between the month, day and year. Well, let's be a little more specific here about that ddmmyy format. Here, the dates are read in using the mmddyy informat and are displayed in the rearranged ddmmyy format. Don't worry - SAS will let you know if you misspecify the width of the format! Also, note that the way that we format dates can be completely independent of the way that they are informatted. Note, in particular, that the width of the mmddyy informat (6, 8, or 10) tells SAS what form of the date it should expect. First, review the INPUT statement and the corresponding forms of the Apdate in the DATALINES statement.