摘要: Used in the datastep, the drop statement drops variables from the data set. Example: data score; infi[阅读全文:]
摘要: SAS filename statements make it easier to refer to files stored on the computer system. The fileref t[阅读全文:]
摘要: Conditional statements (if-then statements, if-then-else statements) are often used to assign values[阅读全文:]
摘要: The infile statement replaces the cards statement when data is to be read from a file already on disk[阅读全文:]
摘要: Informats are used to read in data that does not conform to the default SAS length restrictions. Info[阅读全文:]
摘要: The input statement is used in the datastep to read raw data from data cards and assign the data as v[阅读全文:]
摘要: Used in the datastep, the keep statement explicitly specifies which variables are to be retained in t[阅读全文:]
摘要: The keys window displays the current assignment of function keys to display manager commands. The key[阅读全文:]
摘要: Labels of length up to 40 characters (including blanks) can be attached to SAS variables. This partia[阅读全文:]
摘要: The libname statement is used to create a library reference, or libref, for a SAS catalog. The syntax[阅读全文:]
