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Fixed a bug in find_min_single_variable() I introduced a few hours ago.

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This commit is contained in:
Davis E. King 2014-07-02 16:16:41 -04:00
parent cea4540740
commit 8f022c0042
1 changed files with 4 additions and 2 deletions
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6
dlib/optimization/optimization_line_search.h
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@ -649,17 +649,19 @@ namespace dlib
// If the left most points are identical in function value then expand out the // If the left most points are identical in function value then expand out the
// left a bit, unless it's already at bound or we would drop that left most // left a bit, unless it's already at bound or we would drop that left most
// point anyway because it's bad. // point anyway because it's bad.
if (f1==f2 && f1<f3 && f1!=begin) if (f1==f2 && f1<f3 && p1!=begin)
{ {
p1 = max(p1 - search_radius, begin); p1 = max(p1 - search_radius, begin);
f1 = f(p1); f1 = f(p1);
++f_evals;
search_radius *= 2; search_radius *= 2;
continue; continue;
} }
if (f2==f3 && f3<f1 && f3!=end) if (f2==f3 && f3<f1 && p3!=end)
{ {
p3 = min(p3 + search_radius, end); p3 = min(p3 + search_radius, end);
f3 = f(p3); f3 = f(p3);
++f_evals;
search_radius *= 2; search_radius *= 2;
continue; continue;
} }