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Further simplify move_importance()

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Function move_importance() is already always
positive, so we don't need to add a constant
term to ensure it.

Becuase move_importance() is used to calculate
ratios of a linear combination (as explained in
previous patch), result is not affected. I have
also verified it directly.

No functional change.
This commit is contained in:
Marco Costalba
2014-01-01 13:35:11 +01:00
parent 92faa74dfa
commit a795187c50
1 changed files with 1 additions and 1 deletions
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2
src/timeman.cpp
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@@ -44,7 +44,7 @@ namespace {
double move_importance(int ply) { double move_importance(int ply) {
return 1 / pow((1 + exp((ply - xshift) / xscale)), skewfactor) + 1e-3; // Ensure non-zero return 1 / pow((1 + exp((ply - xshift) / xscale)), skewfactor);
} }