August 2003
Beginner to intermediate
240 pages
7h 44m
English
Content preview from XForms Essentials
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Name
avg( ) — returns the average of all the nodes in the node-set operands
Synopsis
| Defined in: XForms 1.0 |
Parameters: node-set operands (required) |
| Return type: number |
The average is computed as the sum( ) divided by
the count( ) of the value of each individual node,
converted into a number (as with number( )).
For an XPath data model representing the following XML:
<operands> <operand>3.14</operand> <operand>42</operand> <operand>0</operand> <operand>0.86</operand> </operands>
The following XPath expression returns 11.5:
avg(/operands/operand)
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