How to Use & and && Operator in MATLAB?

IS MISSING and IS NOT MISSING Operators in SAS Programming

Last Updated : 23 Jul, 2019

IS MISSING Operator: Selecting Missing Values Task 1: Suppose you want to select only those observations in which students did not fill their section information.
SQL
data readin; input name $ Section $ Score; cards; Raj A 80 Atul . 77 Priya B 45 Sandeep A 95 Rahul . 84 Shreya . 44 ; run; data readin1; set readin; where Section is missing; run;
Output: Where Section is missing => This would tell SAS to select missing values for variable SECTION.
IS NOT MISSING Operator: Selecting Non-Missing Values Task 2: Suppose you want to select only those observations in which students filled their section information.
SQL
data readin; input name $ Section $ Score; cards; Raj A 80 Atul . 77 Priya B 45 Sandeep A 95 Rahul . 84 Shreya C 44 ; run; data readin1; set readin; where Section is not missing; run;
Output: Where Section is not missing => This would tell SAS to select non-missing values. The NOT operator can be used with WHERE statement in many other ways:
- where the section is not missing and the score is missing;
- where not (score in (34, 44, 84));
- where not (Score between 50 and 90);
- where NOT(Section EQ "A");

How to Use & and && Operator in MATLAB?

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