--- /dev/null
+
+/* ====================================================================
+ 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.hssf.usermodel.HSSFCell;
+import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
+import org.apache.poi.hssf.usermodel.HSSFSheet;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+
+import static org.apache.poi.ss.util.Utils.addRow;
+import static org.apache.poi.ss.util.Utils.assertDouble;
+
+/**
+ * Testcase for function STDEVP()
+ */
+public class TestStdevp {
+
+ //https://support.microsoft.com/en-us/office/stdevp-function-1f7c1c88-1bec-4422-8242-e9f7dc8bb195
+ @Test
+ void testMicrosoftExample1() throws IOException {
+ try (HSSFWorkbook wb = initWorkbook1()) {
+ HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
+ HSSFCell cell = wb.getSheetAt(0).getRow(0).createCell(12);
+ assertDouble(fe, cell, "STDEVP(A3:A12)", 26.0545581424825, 0.00000000001);
+ assertDouble(fe, cell, "STDEV(A3:A12)", 27.4639157198435, 0.00000000001);
+ }
+ }
+
+ private HSSFWorkbook initWorkbook1() {
+ HSSFWorkbook wb = new HSSFWorkbook();
+ HSSFSheet sheet = wb.createSheet();
+ addRow(sheet, 0, "Data");
+ addRow(sheet, 1, "Strength");
+ addRow(sheet, 2, 1345);
+ addRow(sheet, 3, 1301);
+ addRow(sheet, 4, 1368);
+ addRow(sheet, 5, 1322);
+ addRow(sheet, 6, 1310);
+ addRow(sheet, 7, 1370);
+ addRow(sheet, 8, 1318);
+ addRow(sheet, 9, 1350);
+ addRow(sheet, 10, 1303);
+ addRow(sheet, 11, 1299);
+ return wb;
+ }
+}