Difference between revisions of "FR/Documentation/Calc: fonction ESTERREUR"
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(New page: __NOTOC__ == ESTERREUR == Test n'importe quelle valeur d'erreur === Syntax: === <tt>'''ISERROR(value)'''</tt> :Returns <tt>'''TRUE'''</tt> if <tt>'''value'''</tt> refers to or evaluate...) |
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Revision as of 15:11, 31 July 2008
ESTERREUR
Test n'importe quelle valeur d'erreur
Syntax:
ISERROR(value)
- Returns TRUE if value refers to or evaluates to any error value, including #N/A, and FALSE otherwise.
- Use the ISERR function to test for any errors except #N/A.
Example:
ISERROR(SQRT(-1))
- returns TRUE, because taking the squareroot of -1 is an error.
ISERROR(C5)
- where C5 contains 123, returns FALSE, because 123 is not an error.
ISERROR(NA())
- returns TRUE, because NA() returns the #N/A error.
See also:
ISERR function, ISNA function, NA function
Issues:
- CHOOSE(0;"A";"B";"C";"D") returns Err:502 (correctly - the index is out of range) but ISERROR(CHOOSE(0;"A";"B";"C";"D")) also returns Err:502, rather than TRUE. The error is propagated rather than evaluated.
