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RangeMissingCount - script and chart function

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RangeMissingCount - script and chart function

RangeMissingCount() returns the number of non-numeric values (including NULL) in the expression or field.

Syntax:  

RangeMissingCount(first_expr[, Expression])

Return data type: integer

Arguments:  

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

Arguments
Argument Description
first_expr

The expression or field containing the data to be counted.

Expression Optional expressions or fields containing the range of data to be counted.

Examples and results:  

Function examples
Examples Results
RangeMissingCount (1,2,4)

Returns 0

RangeMissingCount (5,'abc') Returns 1
RangeMissingCount (null( ))

Returns 1

Example with expression:

RangeMissingCount (Above(MinString(MyField),0,3))

Returns the number of non-numeric values in the three results of the MinString(MyField) function evaluated on the current row and two rows above the current row.

Tip noteDisable sorting of MyField to ensure that example works as expected.
Sample data
MyField RangeMissingCount(Above(MinString(MyField),0,3)) Explanation
10 2 Returns 2 because there are no rows above this row so 2 of the 3 values are missing.
abc 2 Returns 2 because there is only 1 row above the current row and the current row is non-numeric ('abc').
8 1 Returns 1 because 1 of the 3 rows includes a non-numeric ('abc').
def 2 Returns 2 because 2 of the 3 rows include non-numeric values ('def' and 'abc').
xyz 2 Returns 2 because 2 of the 3 rows include non-numeric values (' xyz' and 'def').
9 2 Returns 2 because 2 of the 3 rows include non-numeric values (' xyz' and 'def').

Data used in examples:

RangeTab:

LOAD * INLINE [

MyField

10

'abc'

8

'def'

'xyz'

9

] ;