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support DVARP and DSTDEVP

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1901280 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
PJ Fanning 2022-05-26 11:07:41 +00:00
parent d12fc44609
commit c926c47091
6 changed files with 134 additions and 4 deletions
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4
poi/src/main/java/org/apache/poi/ss/formula/eval/FunctionEval.java
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@ -206,8 +206,8 @@ public final class FunctionEval {
retval[193] = AggregateFunction.STDEVP;
retval[194] = AggregateFunction.VARP;
// 195: DSTDEVP
// 196: DVARP
retval[195] = new DStarRunner(DStarRunner.DStarAlgorithmEnum.DSTDEVP);
retval[196] = new DStarRunner(DStarRunner.DStarAlgorithmEnum.DVARP);
retval[197] = NumericFunction.TRUNC;
retval[198] = LogicalFunction.ISLOGICAL;
// 199: DCOUNTA

4
poi/src/main/java/org/apache/poi/ss/formula/functions/DStarRunner.java
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@ -63,8 +63,12 @@ public final class DStarRunner implements Function3Arg {
DAVERAGE(DAverage::new),
/** @see DStdev */
DSTDEV(DStdev::new),
/** @see DStdevp */
DSTDEVP(DStdevp::new),
/** @see DVar */
DVAR(DVar::new),
/** @see DVarp */
DVARP(DVarp::new),
/** @see DProduct */
DPRODUCT(DProduct::new),
;

53
poi/src/main/java/org/apache/poi/ss/formula/functions/DStdevp.java Normal file
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@ -0,0 +1,53 @@
/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package org.apache.poi.ss.formula.functions;
import org.apache.poi.ss.formula.eval.NumberEval;
import org.apache.poi.ss.formula.eval.NumericValueEval;
import org.apache.poi.ss.formula.eval.ValueEval;
import org.apache.poi.ss.util.NumberToTextConverter;
import java.math.BigDecimal;
import java.util.ArrayList;
/**
* Implementation of the DStdevp function:
* Gets the standard deviation value of a column in an area with given conditions.
*/
public final class DStdevp implements IDStarAlgorithm {
private final ArrayList<NumericValueEval> values = new ArrayList<>();
@Override
public boolean processMatch(ValueEval eval) {
if (eval instanceof NumericValueEval) {
values.add((NumericValueEval) eval);
}
return true;
}
@Override
public ValueEval getResult() {
final double[] array = new double[values.size()];
int pos = 0;
for (NumericValueEval d : values) {
array[pos++] = d.getNumberValue();
}
final double stdev = StatsLib.stdevp(array);
return new NumberEval(new BigDecimal(NumberToTextConverter.toText(stdev)).doubleValue());
}
}

53
poi/src/main/java/org/apache/poi/ss/formula/functions/DVarp.java Normal file
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@ -0,0 +1,53 @@
/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package org.apache.poi.ss.formula.functions;
import org.apache.poi.ss.formula.eval.NumberEval;
import org.apache.poi.ss.formula.eval.NumericValueEval;
import org.apache.poi.ss.formula.eval.ValueEval;
import org.apache.poi.ss.util.NumberToTextConverter;
import java.math.BigDecimal;
import java.util.ArrayList;
/**
* Implementation of the DVarp function:
* Gets the variance value of a column in an area with given conditions.
*/
public final class DVarp implements IDStarAlgorithm {
private final ArrayList<NumericValueEval> values = new ArrayList<>();
@Override
public boolean processMatch(ValueEval eval) {
if (eval instanceof NumericValueEval) {
values.add((NumericValueEval) eval);
}
return true;
}
@Override
public ValueEval getResult() {
final double[] array = new double[values.size()];
int pos = 0;
for (NumericValueEval d : values) {
array[pos++] = d.getNumberValue();
}
final double var = StatsLib.varp(array);
return new NumberEval(new BigDecimal(NumberToTextConverter.toText(var)).doubleValue());
}
}

12
poi/src/test/java/org/apache/poi/ss/formula/functions/TestDStdev.java
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@ -29,7 +29,7 @@ import static org.apache.poi.ss.util.Utils.addRow;
import static org.apache.poi.ss.util.Utils.assertDouble;
/**
* Testcase for function DSTDEV()
* Testcase for function DSTDEV() and DSTDEVP()
*/
public class TestDStdev {
@ -43,6 +43,16 @@ public class TestDStdev {
}
}
//https://support.microsoft.com/en-us/office/dstdevp-function-04b78995-da03-4813-bbd9-d74fd0f5d94b
@Test
void testDSTDEVPMicrosoftExample1() throws IOException {
try (HSSFWorkbook wb = initWorkbook1()) {
HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
HSSFCell cell = wb.getSheetAt(0).getRow(0).createCell(12);
assertDouble(fe, cell, "DSTDEVP(A5:E11, \"Yield\", A1:A3)", 2.65329983228432, 0.0000000001);
}
}
private HSSFWorkbook initWorkbook1() {
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet();

12
poi/src/test/java/org/apache/poi/ss/formula/functions/TestDVar.java
View File

@ -29,7 +29,7 @@ import static org.apache.poi.ss.util.Utils.addRow;
import static org.apache.poi.ss.util.Utils.assertDouble;
/**
* Testcase for function DVAR()
* Testcase for function DVAR() and DVARP()
*/
public class TestDVar {
@ -43,6 +43,16 @@ public class TestDVar {
}
}
//https://support.microsoft.com/en-us/office/dvarp-function-eb0ba387-9cb7-45c8-81e9-0394912502fc
@Test
void testDVARPMicrosoftExample1() throws IOException {
try (HSSFWorkbook wb = initWorkbook1()) {
HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
HSSFCell cell = wb.getSheetAt(0).getRow(0).createCell(12);
assertDouble(fe, cell, "DVARP(A4:E10, \"Yield\", A1:A3)", 7.04, 0.0000000001);
}
}
private HSSFWorkbook initWorkbook1() {
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet();