Instead of matching a certain document, this line's value is computed by performing arithmetic on the other entries. Numbers can appear, with or without a decimal point. Calculations are carried out according to the normal rules of algebra. Parentheses are also allowed. Most importantly, references to the results of of earlier lines are allowed , much like references to another cell in a spreadsheet program.
Functions can make a reference to the result of any prior entry.
The clicks are counted through the use of the provided clickthrough.cgi CGI program. Otherwise the function will be confused with its label. This line's value will still be calculated, and it will appear in the table of results, but it will not be graphed. This is useful when it would be meaningless to add up the values from different days, weeks or months. Putting It All Together Note that you can use nograph , nototal and function together, if you wish to do so.