Often Programmers are required to find if an object exists in SAS for validation or to execute certain codes dynamically. This article will help you to find if a specific object exists in SAS. The types of objects include datasets, external files, open libraries, file references, macros, macro variables, formats, informats, and specific variables in a dataset.
In SAS, you can quickly specify a list of variables in SAS statements like KEEP and DROP statements, the ARRAY statement, and the OF operator for comma-separated arguments to some functions. You can also …
In SAS, the order of variables in a data set is based on the order in which the variables were created. There are several reasons you may want to reorder variables names in a SAS data set. You can change the position of a variable in a SAS dataset with any of the following statements. ATTRIB, ARRAY, FORMAT, INFORMAT, LENGTH, and RETAIN.
Count missing and Non-missing values for each variable – In SAS, we often need to get the count of missing and non-missing values in a SAS dataset. The code used in this example uses PROC FORMAT to create the format for character and numeric variables to be either “non-missing” or “missing” and then use that format with PROC FREQ.