コード例 #1
0
ファイル: ProbTable.cpp プロジェクト: Chenxofhit/fast-mRMR
/**
 * Generates a table with all the marginal probabilities for each value for all features.
 *
 * This table is kept in memory so the marginal probability is computed only one time.
 */
void ProbTable::calculate() {
	Histogram histogram = Histogram(rawData);
	int i = 0;
	int j = 0;
	t_prob value = 0;
	t_histogram hist_data;
	for (i = 0; i < featuresSize; ++i) {
		table[i] = (t_prob*) malloc(valuesRange[i] * sizeof(t_prob));
		hist_data = histogram.getHistogram(i);
		for (j = 0; j < valuesRange[i]; ++j) {
			value = (t_prob) hist_data[j] / (t_prob) datasize;
			table[i][j] = value;
		}
	}
}