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2. Main menu.

2.1. Computing the odds for the current tree.

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When using this command, the whole tree is computed anew ( erasing the results of previous computation). A progress bar shows up.

The computation will stop if one of the following conditions is fulfilled :

§ The Escape key has been hit (or the 'stop' button pressed),
§ The target accuracy has been reached,
§ The maximum number of valid trees has been reached,
§ The program went through (10,000 x tree size) trees and found none of them valid,
§ The built-in maximum value for the number of trees to be scanned (valid or not) has been reached. The default value is 1 million in this version.

The fourth condition prevents from lingering too long on trees with no solution (since no valid tree is found, the software would otherwise go on up to the maximum number of trees, even with a poor target accuracy). However, this may lead to give away as impossible trees that were only unlikely

The last condition is a safeguard and will eventually be fulfilled anyway, should the previous rules fail to halt the program.

If at the end of the process no possible tree were found, the warning no available solution would show up. Such a tree must be self contradictory or at least a very unlikely one.

Left click on an individual to get the particulars of its results (see section 3).

2.3. Files

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You can open or save whatever tree you've devised. Files are saved in the .arbre format.
A new tree will start with the elder couple only.

Exit : terminates the program.