Difference between revisions of "IF a THEN b ELSE c"

 
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[[Category:Analytica User Guide]]
 
[[Category:Analytica User Guide]]
<breadcrumbs>Analytica User Guide > Using Expressions > {{PAGENAME}}</breadcrumbs>
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<breadcrumbs>Analytica User Guide > Expressions > {{PAGENAME}}</breadcrumbs>
  
  
This conditional expression returns '''b '''if '''a '''is true (1) or '''c '''if '''a '''is false (0), for example:
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This conditional expression returns «b» if «a» is true (1) or «c» if «a» is false (0), for example:
 
:<code>Variable X := 1M</code>
 
:<code>Variable X := 1M</code>
 
:<code>Variable Y := 1</code>
 
:<code>Variable Y := 1</code>
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returns the larger of <code>X</code> and <code>Y</code>.
 
returns the larger of <code>X</code> and <code>Y</code>.
  
It is possible to omit the <code>ELSE</code> clause:
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It is possible to omit the '''ELSE''' clause:
 
:<code>IF X > Y THEN X</code>
 
:<code>IF X > Y THEN X</code>
  
If the condition is false, it gives a warning. If you ignore the warning, it returns <code>NULL</code>.
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If the condition is false, it gives a warning. If you ignore the warning, it returns [[Null]].
  
 
Conditional expressions get more interesting when they work on arrays. See [[IF a THEN b ELSE c with arrays]].
 
Conditional expressions get more interesting when they work on arrays. See [[IF a THEN b ELSE c with arrays]].
  
 
==See Also==
 
==See Also==
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* [[If-Then-Else]]
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* [[IF a THEN b ELSE c with arrays]]
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<footer>Operators / {{PAGENAME}} / Function calls and parameters</footer>
 
<footer>Operators / {{PAGENAME}} / Function calls and parameters</footer>

Latest revision as of 00:13, 1 June 2016


This conditional expression returns «b» if «a» is true (1) or «c» if «a» is false (0), for example:

Variable X := 1M
Variable Y := 1
IF X > Y THEN X ELSE Y → 1M

returns the larger of X and Y.

It is possible to omit the ELSE clause:

IF X > Y THEN X

If the condition is false, it gives a warning. If you ignore the warning, it returns Null.

Conditional expressions get more interesting when they work on arrays. See IF a THEN b ELSE c with arrays.

See Also


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