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small refactor 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1901275 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
PJ Fanning 2022-05-26 09:15:43 +00:00
parent bedf2a4e6d
commit 3d57a45f65
2 changed files with 8 additions and 10 deletions
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9
poi/src/main/java/org/apache/poi/ss/formula/functions/DStdev.java
View File

@ -30,13 +30,12 @@ import java.util.ArrayList;
* Gets the standard deviation value of a column in an area with given conditions.
*/
public final class DStdev implements IDStarAlgorithm {
private final ArrayList<Double> values = new ArrayList<>();
private final ArrayList<NumericValueEval> values = new ArrayList<>();
@Override
public boolean processMatch(ValueEval eval) {
if (eval instanceof NumericValueEval) {
final double val = ((NumericValueEval)eval).getNumberValue();
values.add(val);
values.add((NumericValueEval) eval);
}
return true;
}
@ -45,8 +44,8 @@ public final class DStdev implements IDStarAlgorithm {
public ValueEval getResult() {
final double[] array = new double[values.size()];
int pos = 0;
for (Double d : values) {
array[pos++] = d;
for (NumericValueEval d : values) {
array[pos++] = d.getNumberValue();
}
final double stdev = StatsLib.stdev(array);
return new NumberEval(new BigDecimal(NumberToTextConverter.toText(stdev)).doubleValue());

9
poi/src/main/java/org/apache/poi/ss/formula/functions/DVar.java
View File

@ -30,13 +30,12 @@ import java.util.ArrayList;
* Gets the variance value of a column in an area with given conditions.
*/
public final class DVar implements IDStarAlgorithm {
private final ArrayList<Double> values = new ArrayList<>();
private final ArrayList<NumericValueEval> values = new ArrayList<>();
@Override
public boolean processMatch(ValueEval eval) {
if (eval instanceof NumericValueEval) {
final double val = ((NumericValueEval)eval).getNumberValue();
values.add(val);
values.add((NumericValueEval) eval);
}
return true;
}
@ -45,8 +44,8 @@ public final class DVar implements IDStarAlgorithm {
public ValueEval getResult() {
final double[] array = new double[values.size()];
int pos = 0;
for (Double d : values) {
array[pos++] = d;
for (NumericValueEval d : values) {
array[pos++] = d.getNumberValue();
}
final double var = StatsLib.var(array);
return new NumberEval(new BigDecimal(NumberToTextConverter.toText(var)).doubleValue());