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RangeMaxString - script and chart function

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RangeMaxString - script and chart function

RangeMaxString() returns the last value in the text sort order that it finds in the expression or field.

Syntax:  

RangeMaxString(first_expr[, Expression])

Return data type: string

Arguments:  

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

  • 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. Multiple additional expressions can be used.

Examples:  

Examples and results
Example Result
RangeMaxString (1,2,4)

Returns 4

RangeMaxString ('xyz','abc')

Returns 'xyz'
RangeMaxString (5,'abc') Returns 'abc'
RangeMaxString (null( ))

Returns NULL

Example: (using expression)

RangeMaxString (Above(MaxString(MyField),0,3))

Returns the last (in text sort order) of the three results of the MaxString(MyField) function evaluated on the current row and two rows above the current row.

Tip: Disable sorting of MyField to ensure that example works as expected.
Example expression output
MyField RangeMaxString(Above(MaxString(MyField),0,3))
10

10

abc abc
8 abc
def def
xyz xyz
9 xyz

Data used in examples:

RangeTab:

LOAD * INLINE [

MyField

10

'abc'

8

'def'

'xyz'

9

] ;