Is there else if in SAS?

Is there else if in SAS?

An optional else-if statement can follow the if-then statement. SAS evaluates the expression in the else-if statement only when the previous expression is false. else-if statements are useful when forming mutually exclusive groups.

What is the difference between if and if else statement?

The if statement is a decision-making structure that consists of an expression followed by one or more statements. The if else is a decision-making structure in which the if statement can be followed by an optional else statement that executes when the expression is false.

Is it if else or else if?

Conditional Statements Use if to specify a block of code to be executed, if a specified condition is true. Use else to specify a block of code to be executed, if the same condition is false. Use else if to specify a new condition to test, if the first condition is false.

What does Else mean in SAS?

02/07/2020 SAS Example Code. In SAS you can use the IF-THEN/ELSE statement to execute other statements that meet a specific condition. Also, you can use this statement to subset a data set.

How do you say not equal in SAS?

2 In a WHERE expression, the symbol representation <> is interpreted as “not equal to”. If missing values are part of the comparison, SAS uses the sorting order for missing values that is described in Order of Missing Values.

Can I use if and then and SAS?

You can use an IF-THEN-DO statement in SAS to do a block of statements if some condition is true. This statement uses the following basic syntax: if var1 = “value” then do; new_var2 = 10; new_var3 = 5; end; Note: An IF-THEN statement is used when you only want to do one statement.

Is else if and if else if same?

The main difference between If and Else If is that you can use the If block only at once or for one time in a sentence, while Else If can be used multiple times altogether as there is no barrier for it.

How does if else if else work?

The if/else if statement allows you to create a chain of if statements. The if statements are evaluated in order until one of the if expressions is true or the end of the if/else if chain is reached. If the end of the if/else if chain is reached without a true expression, no code blocks are executed.

What does variable uninitialized mean in SAS?

The variable is uninitialized SAS note indicates that this variable contains no data – the variable is not populated with non-missing data in any row. You can prove this for yourself by running the following program (please put your actual dataset and variable name in this code before running):

What does a period mean in SAS?

In SAS Missing values for numeric variables (including date variables) appear as a period. SAS treats numeric nulls as equal to “the lowest possible number” (essentially negative infinity) when sorting a numeric field. SAS datasets will have a period as a value for missing data.

What does colon mean in SAS?

5) Colon Modifier: Colons are used in the input statement for reading unorganized as well as unorganized data. For example, the statement “input name : $7.” means that SAS will read the observation from column one up to the occurrence of the first delimiter with a length of 7.