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Bug 54535: Bug in INTERCEPT and SLOPE, review and integration test added to FormulaEvalTestData.xls 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1538772 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Cédric Walter 2013-11-04 21:27:12 +00:00
parent f97310c1f6
commit 26dc6796df
4 changed files with 23 additions and 24 deletions
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11
src/java/org/apache/poi/ss/formula/functions/LinearRegressionFunction.java
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@ -68,7 +68,7 @@ public final class LinearRegressionFunction extends Fixed2ArgFunction {
super(1);
_value = value;
}
@Override
protected ValueEval getItemInternal(int index) {
return _value;
}
@ -80,7 +80,7 @@ public final class LinearRegressionFunction extends Fixed2ArgFunction {
super(1);
_ref = ref;
}
@Override
protected ValueEval getItemInternal(int index) {
return _ref.getInnerValueEval();
}
@ -95,7 +95,7 @@ public final class LinearRegressionFunction extends Fixed2ArgFunction {
_ae = ae;
_width = ae.getWidth();
}
@Override
protected ValueEval getItemInternal(int index) {
int rowIx = index / _width;
int colIx = index % _width;
@ -114,8 +114,8 @@ public final class LinearRegressionFunction extends Fixed2ArgFunction {
ValueEval arg0, ValueEval arg1) {
double result;
try {
ValueVector vvX = createValueVector(arg0);
ValueVector vvY = createValueVector(arg1);
ValueVector vvY = createValueVector(arg0);
ValueVector vvX = createValueVector(arg1);
int size = vvX.getSize();
if (size == 0 || vvY.getSize() != size) {
return ErrorEval.NA;
@ -137,7 +137,6 @@ public final class LinearRegressionFunction extends Fixed2ArgFunction {
ErrorEval firstXerr = null;
ErrorEval firstYerr = null;
boolean accumlatedSome = false;
double result = 0.0;
// first pass: read in data, compute xbar and ybar
double sumx = 0.0, sumy = 0.0;

18
src/testcases/org/apache/poi/ss/formula/functions/TestIntercept.java
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@ -59,7 +59,7 @@ public final class TestIntercept extends TestCase {
public void testBasic() {
Double exp = Math.pow(10, 7.5);
ValueEval[] xValues = {
ValueEval[] yValues = {
new NumberEval(3+exp),
new NumberEval(4+exp),
new NumberEval(2+exp),
@ -67,9 +67,9 @@ public final class TestIntercept extends TestCase {
new NumberEval(4+exp),
new NumberEval(7+exp),
};
ValueEval areaEvalX = createAreaEval(xValues);
ValueEval areaEvalY = createAreaEval(yValues);
ValueEval[] yValues = {
ValueEval[] xValues = {
new NumberEval(1),
new NumberEval(2),
new NumberEval(3),
@ -77,7 +77,7 @@ public final class TestIntercept extends TestCase {
new NumberEval(5),
new NumberEval(6),
};
ValueEval areaEvalY = createAreaEval(yValues);
ValueEval areaEvalX = createAreaEval(xValues);
confirm(INTERCEPT, areaEvalX, areaEvalY, -24516534.39905822);
// Excel 2010 gives -24516534.3990583
}
@ -86,9 +86,9 @@ public final class TestIntercept extends TestCase {
* number of items in array is not limited to 30
*/
public void testLargeArrays() {
ValueEval[] xValues = createMockNumberArray(100, 3); // [1,2,0,1,2,0,...,0,1]
xValues[0] = new NumberEval(2.0); // Changes first element to 2
ValueEval[] yValues = createMockNumberArray(100, 101); // [1,2,3,4,...,99,100]
ValueEval[] yValues = createMockNumberArray(100, 3); // [1,2,0,1,2,0,...,0,1]
yValues[0] = new NumberEval(2.0); // Changes first element to 2
ValueEval[] xValues = createMockNumberArray(100, 101); // [1,2,3,4,...,99,100]
confirm(INTERCEPT, createAreaEval(xValues), createAreaEval(yValues), 51.74384236453202);
// Excel 2010 gives 51.74384236453200
@ -136,8 +136,8 @@ public final class TestIntercept extends TestCase {
confirmError(areaEvalX, areaEvalX, ErrorEval.REF_INVALID);
// search for errors array by array, not pair by pair
confirmError(areaEvalX, areaEvalY, ErrorEval.REF_INVALID);
confirmError(areaEvalY, areaEvalX, ErrorEval.NULL_INTERSECTION);
confirmError(areaEvalX, areaEvalY, ErrorEval.NULL_INTERSECTION);
confirmError(areaEvalY, areaEvalX, ErrorEval.REF_INVALID);
}
/**

18
src/testcases/org/apache/poi/ss/formula/functions/TestSlope.java
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@ -54,7 +54,7 @@ public final class TestSlope extends TestCase {
public void testBasic() {
Double exp = Math.pow(10, 7.5);
ValueEval[] xValues = {
ValueEval[] yValues = {
new NumberEval(3+exp),
new NumberEval(4+exp),
new NumberEval(2+exp),
@ -62,9 +62,9 @@ public final class TestSlope extends TestCase {
new NumberEval(4+exp),
new NumberEval(7+exp),
};
ValueEval areaEvalX = createAreaEval(xValues);
ValueEval areaEvalY = createAreaEval(yValues);
ValueEval[] yValues = {
ValueEval[] xValues = {
new NumberEval(1),
new NumberEval(2),
new NumberEval(3),
@ -72,7 +72,7 @@ public final class TestSlope extends TestCase {
new NumberEval(5),
new NumberEval(6),
};
ValueEval areaEvalY = createAreaEval(yValues);
ValueEval areaEvalX = createAreaEval(xValues);
confirm(SLOPE, areaEvalX, areaEvalY, 0.7752808988764045);
// Excel 2010 gives 0.775280898876405
}
@ -81,9 +81,9 @@ public final class TestSlope extends TestCase {
* number of items in array is not limited to 30
*/
public void testLargeArrays() {
ValueEval[] xValues = createMockNumberArray(100, 3); // [1,2,0,1,2,0,...,0,1]
xValues[0] = new NumberEval(2.0); // Changes first element to 2
ValueEval[] yValues = createMockNumberArray(100, 101); // [1,2,3,4,...,99,100]
ValueEval[] yValues = createMockNumberArray(100, 3); // [1,2,0,1,2,0,...,0,1]
yValues[0] = new NumberEval(2.0); // Changes first element to 2
ValueEval[] xValues = createMockNumberArray(100, 101); // [1,2,3,4,...,99,100]
confirm(SLOPE, createAreaEval(xValues), createAreaEval(yValues), -1.231527093596059);
// Excel 2010 gives -1.23152709359606
@ -131,7 +131,7 @@ public final class TestSlope extends TestCase {
confirmError(areaEvalX, areaEvalX, ErrorEval.REF_INVALID);
// search for errors array by array, not pair by pair
confirmError(areaEvalX, areaEvalY, ErrorEval.REF_INVALID);
confirmError(areaEvalY, areaEvalX, ErrorEval.NULL_INTERSECTION);
confirmError(areaEvalX, areaEvalY, ErrorEval.NULL_INTERSECTION);
confirmError(areaEvalY, areaEvalX, ErrorEval.REF_INVALID);
}
}

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test-data/spreadsheet/FormulaEvalTestData.xls
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