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Remove unneeded small value added to logs

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This commit is contained in:
Ricardo Montañana Gómez
2023-06-23 01:25:23 +02:00
parent 30cc744033
commit d7425e5af0
2 changed files with 3 additions and 4 deletions
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5
bayesclass/FeatureSelect.cpp
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@@ -100,11 +100,10 @@ namespace features {
for (auto& [label, jointCount] : jointCounts[feat]) {
auto p_l_f = jointCount / count;
if (p_l_f > 0) {
double epsilon = 1e-9;
if (nat)
entropy_f -= p_l_f * log(p_l_f + epsilon);
entropy_f -= p_l_f * log(p_l_f);
else
entropy_f -= p_l_f * log2(p_l_f + epsilon);
entropy_f -= p_l_f * log2(p_l_f);
}
}
entropy += p_f * entropy_f;

2
bayesclass/FeatureSelect.h
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@@ -5,7 +5,7 @@
#include <string>
using namespace std;
namespace features {
typedef double precision_t;
typedef float precision_t;
typedef int value_t;
typedef vector<value_t> sample_t;
typedef vector<sample_t> samples_t;