This way if either var1 or var2 is missing, then no action is taken by the IF command, and newvar remains 0. If you need newvar to be set equal to 1 when you know var1 = 1 (i.e., var1 not missing) and var2 = 2 (i.e., var2 not missing) and you want newvar set to 0 in all other cases, then the simplest way is to first initialize newvar to 0, and then flip it to 1 only when var = 1 and var2 = 2: There's an easier solution to the original problem. NOTE: this was meant as an illustration of how a DO IF-ELSE IF structure handles missing values. SPSS then decides 'VAR1=1 and VAR2=2: I can't determine.' The case is neither true or false, so the case falls out of the DO IF structure without a NEWVAR value being assigned SPSS looks at the first case where VAR1=1 and VAR2 is system-missing. The case then falls out of the DO IF structure and SPSS goes to the next case.

n is Stata notation for the current observation number. What is N and n in Stata Stata has two built-in variables called n and N. In Stata, that loop occurs separately for each statement. First, I define a fiscal year: Code: bys permno: replace fyear fyear - 1 if month. My final goal is to construct a date variable that will have a fiscal year and fiscal quarter. Dear Stata Users, I have the end of the fiscal year month (the dataset is monthly). (But, the if qualifier does not have a corresponding else part. if/else statement - correct application of these functions. SPSS will process the DO IF command for this case and say 'VAR1=1: true' and go to the COMPUTE command so NEW_VAR=1. An if statement can optionally be followed by an else statement. Suppose that for our first case VAR1=1 and VAR2 is system-missing. If either VAR1 or VAR2 is system-missing, then SPSS cannot determine if this selection criteria is either true or false, so SPSS returns a system-missing value for the NEWVAR variable.Д®ven the order of commands can affect the outcome of the target variable. If it is not the case where VAR1=1 and VAR=2, then SPSS returns a value of 'false' and goes to the ELSE command. Why is this happening? SPSS evaluates case criteria as 'true' or 'false.' In the above example, SPSS looks at a case and asks 'VAR1=1 and VAR2=2: true or false?' If VAR1=1 and VAR2=2, then this statement is 'true' and SPSS performs the subsequent COMPUTE command. SPSS is evaluating the cases as it should.

If else stata