where the Variable is a column in the domain specified using the Findings Domain to Analyze parameter, the Operator is used to specify a comparison (see examples below) and the Value is some numeric or character value.
Type SYSBP >= 140 and DIABP >= 90 in the text box.You can set multiple conditions for each definition. Enclose these compound definitions in parentheses. For example, if your data have occasional missing values (the symbol for missing values is typically a period ( . )) and you would prefer to interpret missing values as meeting event criteria:
Type (SYSBP >= 140 or SYSBP =.) and (DIABP >= 90 or DIABP = .) in the text box.Comparison operators (also called binary operators) compare a variable with a value or with another variable. Comparison operators propose a relationship and ask SAS to determine whether that relationship holds. Only observations that meet the condition(s) specified are included in the analysis.
= or EQ
•
• Typing Gene EQ “EGF” subsets the input data set, retaining only those observations where the value in the Gene column is EGF. ^= or NE
• Typing IndividualNum ^= 450 subsets the input data set, retaining only those observations where the value in the IndividualNum column is not equal to 450. < or LT
• Typing Position < 100000 subsets the input data set, retaining only those observations where the position value is less than 100,000. > or GT
• Typing Position GT 100000 subsets the input data set, retaining only those observations where the position value is greater than 100,000. <= or LE
• Typing Position <= 100000 subsets the input data set, retaining only those observations where the position value is less than or equal to 100,000. >= or GE
• Typing Position GE 100000 subsets the input data set, retaining only those observations where the position value is greater than or equal to 100,000.