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InterSystems MDX Reference
LOG
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Returns the base-ten logarithm of the given numeric value.
Returned Type
This function returns a number.
Syntax and Details
LOG(numeric_expression)
Where:
Example
The first example shows the base-ten logarithm for the %COUNT measure:
SELECT LOG(MEASURES.[%COUNT]) ON 0 FROM patients
 
                                       LOG
                                          4
The next example uses the %LABEL function to apply a more detailed caption:
SELECT %LABEL(LOG(MEASURES.[%COUNT]),"LOG PAT CNT") ON 0 FROM patients
 
                               LOG PAT CNT
                                          4
See Also