7 Components: the Function Pages - Developers

19.7.1
Syntax
The plugin is triggered by the variable %CALC{"..."}%. This
variable can be situated within a table cell or in a normal continuous
text, whereby several functions only make sense in connection with
tables. The result of the function between the quotation marks is issued
when the page is opened. For example, let us say you wish to
calculate the average number of participants of three workshops visited
by 14, 21 and 12 people respectively:
%CALC{"$AVERAGE(14,21,12)"}%
In the page view, the result 9 is displayed.
Note: Calculations are always based on functions. Even an easy expression
such as 1+1 must be expressed as a function:
%CALC{"$EVAL(1+1)"}%.
Functions have the following schematic structure:
$FUNCTIONNAME(parameter)
Its interpretation is done from left to right. It is possible to nest several
functions, e.g.:
%CALC{"$AVERAGE(14,21,$SUM(4,8))"}%
whereby the calculation in this case is done from the innermost to
the outermost function.
The parameters of a function can be depicted as text, a mathematical
formula, a cell address or cell area. This depends on the function itself.
So, for instance, the sum function processes concrete values or
information in cell areas.
If you wish to refer to the possibly changing content of fixed table
cells, you can do so via the following coordinates:
R1:C1 R1:C2 R1:C3 R1:C4
R2:C1 R2:C2 R2:C3 R2:C4
R3:C1 R3:C2 R3:C3 R3:C4
The R stands for row and the C for column.
19.7 Planning Costs and Financing with Tables
(Spreadsheet Plugin)
Functions
Cell reference
Fig. 19.12
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