Using if statement with or

• Is there a difference between if and where?

  Beginning programmers may think that there is no difference between using the WHERE statement and the IF statement to subset your data set. Knowledgeable programmers know that depending on the situation, sometimes one statement is more appropriate than the other.

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• Should I use if or where statement?

  Since either the WHERE or IF statement could have been used, using the WHERE statement would be more efficient. To save processing time, you can subset the data as you are reading the records while creating the EXAM data set. Since the variables in the INPUT statement exist only in the program data vector, you must specify the IF statement.

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• What is if statement in C++?

  The if Statement and Practice Problems To specify the conditions under which a statement or group of statements should be executed. where if is a reserved word, boolean-expression is an expression that evaluates to true or false, and statement is a C++ statement or a group of statements enclosed in curly braces (a compound statement).

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• What does if do in JavaScript?

  The if command (not to be confused with the if qualifier; see [U] 11.1.3 if exp) evaluates exp. If the result is true (nonzero), the commands inside the braces are executed. If the result is false (zero), those statements are ignored, and the statement (or statements if enclosed in braces) following the else is executed.

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• [PDF File]238-31: WHERE vs. IF Statements: Knowing the Difference in ...

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  Using variables in data set, using SET, MERGE, or UPDATE statement if within the DATA step Accessing raw data file using INPUT statement – Use IF statement Using automatic variables such as _N_, FIRST.BY, LAST.BY – Use IF statement Using newly created variables in data set – Use IF statement Using special operators such as LIKE or CONTAINS – Use...

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• [PDF File]The if Statement and Practice Problems - Bowdoin College

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  if-else Statement Use To choose exactly one out of two statements (possibly compound statements) to be executed; specifies the conditions under which the first statement is to be executed and provides an alternative statement to execute if these conditions are not met. Form if (boolean-expression) statement-1; else statement-2;

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• [PDF File]Beyond IF THEN ELSE: Techniques for Conditional Execution of ...

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  ifc ( pctval = 100 , '100%', ifc ( pctval > 99.9 , '>99.9%', ifc ( pctval = 0 , '0.0%', ifc ( pctval < 0.1 , '

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• [PDF File]If Statements and Booleans - Stanford University

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  The simplest if-statement has two parts – a boolean "test" within parentheses ( ) followed by "body" block of statements within curly braces { }. The test can be any expression that evaluates to a boolean value – true or false – value (boolean expressions are detailed below).

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• [PDF File]Math 127: Logic and Proof - CMU

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  conclusion, using information from multiple previous propositions. 2 Proving biconditional statements Recall, a biconditional statement is a statement of the form p,q. As noted at the end of the previous set of notes, we have that p,qis logically equivalent to (p)q) ^(q)p). Hence, we can approach

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