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RangeOnly - script and chart function

RangeOnly() is a dual function that returns a value if the expression evaluates to one unique value. If this is not the case then NULL is returned.


RangeOnly(first_expr[, Expression])

Return data type: dual


The arguments of this function may contain inter-record functions which in themselves return a list of values.

Argument Description
first_expr The expression or field containing the data to be measured.
Expression Optional expressions or fields containing the range of data to be measured.

Examples and results:  

Examples Results
RangeOnly (1,2,4)

Returns NULL

RangeOnly (5,'abc') Returns NULL
RangeOnly (null( ), 'abc')

Returns 'abc'

RangeOnly(10,10,10) Returns 10

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