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RangeSum - script and chart function

RangeSum() returns the sum of a range of values.All non-numeric values are treated as 0, unlike the + operator.

Syntax:  

RangeSum(first_expr[, Expression])

Return data type: numeric

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 summed.
  • Expression: Optional expressions or fields containing the range of data to be summed. Multiple additional expressions can be used.

Limitations:  

The RangeSum function treats all non-numeric values as 0, unlike the + operator.

Examples:  

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

Returns 7

RangeSum (5,'abc') Returns 5
RangeSum (null( ))

Returns 0

Example: (using expression)

RangeSum (Above(MyField,0,3))

Returns the sum of the three values of MyField): from the current row and two rows above the current row. By specifying the third argument as 3, the Above() function returns three values, where there are sufficient rows above, which are taken as input to the RangeSum() function.

Tip noteDisable sorting of MyField to ensure that example works as expected.
Example expression output
MyField RangeSum(Above(MyField,0,3))
10 10

2

12
8 20
18 28
5 31
9 32

Data used in examples:

RangeTab:

LOAD * INLINE [

MyField

10

2

8

18

5

9

] ;

Example: (in table form)

Add the example script to your document and run it. Then add, at least, the fields listed in the results column to a sheet in your document to see the result.

RangeTab3:

LOAD recno() as RangeID, Rangesum(Field1,Field2,Field3) as MyRangeSum INLINE [

Field1, Field2, Field3

10,5,6

2,3,7

8,2,8

18,11,9

5,5,9

9,4,2

];

The resulting table shows the returned values of MyRangeSum for each of the records in the table.

Example output in table form
RangeID MyRangeSum
1 21
2 12
3 18
4 38
5 19
6 15

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