[SAS base] Proc freq

General format:

 
1 Proc freq;2 Tables variable_combinations/options;3/*Variable_combinations4If it is a single variable: Table variable-Name;5If multiple variables exist: Table variable-name-1 variable-name-2...;6If it is a cross variable: tables variable-name-1 * variable-name-2;7*/
 

Common options include:

  1  List: Set cross- tabulations (joined table) is output in List format instead of the default grid.   2   missing: Add missing values to the frequency table (default: not included );   3   nocol: the percentage of output columns is omitted from the output of the join table.   4   norow: the percentage of output rows is omitted in the output of the joined table.   5   nopercent: the output percentage is omitted in the output of the join table.   6  out = data-set; put the frequency table into the centralized data output. Note that the output is not the type of join table presented in the output window, frequency Statistics table