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Replaced unnecessary bin search with direct computation. 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/math/trunk@141078 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Phil Steitz 2004-01-29 06:26:14 +00:00
parent 90be3c8e9d
commit f6458ee9d0
1 changed files with 6 additions and 17 deletions
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21
src/java/org/apache/commons/math/random/EmpiricalDistributionImpl.java
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@ -92,7 +92,7 @@ import org.apache.commons.math.stat.SummaryStatistics;
* entry per line.</li> * entry per line.</li>
* </ol></p> * </ol></p>
* *
* @version $Revision: 1.14 $ $Date: 2004/01/25 21:30:41 $ * @version $Revision: 1.15 $ $Date: 2004/01/29 06:26:14 $
*/ */
public class EmpiricalDistributionImpl implements Serializable, EmpiricalDistribution { public class EmpiricalDistributionImpl implements Serializable, EmpiricalDistribution {
@ -213,23 +213,12 @@ public class EmpiricalDistributionImpl implements Serializable, EmpiricalDistrib
String str = null; String str = null;
double val = 0.0d; double val = 0.0d;
while ((str = in.readLine()) != null) { while ((str = in.readLine()) != null) {
val = new Double(str).doubleValue(); val = Double.parseDouble(str);
SummaryStatistics stats =
// Find bin and add value to binStats for the bin (SummaryStatistics) binStats.get(Math.max((int)Math.ceil((val - min) / delta) - 1, 0));
boolean found = false;
int i = 0;
while (!found) {
if (i >= binCount) {
throw new RuntimeException("bin alignment error");
}
if (val <= binUpperBounds[i]) {
found = true;
SummaryStatistics stats = (SummaryStatistics)binStats.get(i);
stats.addValue(val); stats.addValue(val);
} }
i++;
}
}
in.close(); in.close();
in = null; in = null;