Multiple "AND" in an "IF" statement

[Sas97]

How to include multiple "AND" and "OR" in an IF statement?

if

'5.1b'n = 0 or '5.1b'n = 1

and '5.2a'n = 0 and '5.3a'n = 0 and '5.4a'n = 0 and
'5.5a'n = 0 and '5.6a'n = 0 and '5.7a'n = 0 and '5.8a'n = 0 and '5.9a'n = 0

then

variable = result

[PaigeMiller]

What is wrong with the code you show (other than it is missing a semi-colon)?

Do you want something like this, where there are parentheses added so that the OR conditions are executed together?

if

('5.1b'n = 0 or '5.1b'n = 1)

and '5.2a'n = 0 and '5.3a'n = 0 and '5.4a'n = 0 and
'5.5a'n = 0 and '5.6a'n = 0 and '5.7a'n = 0 and '5.8a'n = 0 and '5.9a'n = 0

then

variable = result;

[Kurt_Bremser]

AND is evaluated before OR, so your condition is equivalent to this:

if
  '5.1b'n = 0 or (
    '5.1b'n = 1 and '5.2a'n = 0 and '5.3a'n = 0 and '5.4a'n = 0 and
    '5.5a'n = 0 and '5.6a'n = 0 and '5.7a'n = 0 and '5.8a'n = 0 and '5.9a'n = 0
  )
then variable = result;

Why do you make your life difficult by having non-standard names which force you to use name literals?

Use underlines instead of the dots.

[FreelanceReinh]

Hello @Sas97 and welcome to the SAS Support Communities!

By using the IN operator and the CAT function (applied to a name range list) you can possibly avoid multiple "AND" and "OR" in your particular IF condition:

if '5.1b'n in (0 1) & cat(of '5.2a'n--'5.9a'n) = '00000000' then variable = result;

This assumes that

1. You want the condition to be evaluated the way Paige Miller has suggested.
2. Variable '5.2a'n is the first and '5.9a'n is the last of eight consecutive variables including also '5.3a'n, ..., '5.8a'n in the program data vector of your DATA step.Typically, these eight variables would occur in this order in PROC CONTENTS output (using the VARNUM option) of a dataset that is processed in the DATA step.