|
|
Java example source code file (TestMatrix.java)
This example Java source code file (TestMatrix.java) is included in the alvinalexander.com
"Java Source Code
Warehouse" project. The intent of this project is to help you "Learn
Java by Example" TM.
Learn more about this Java project at its project page.
The TestMatrix.java Java example source code
package Jama.test;
import Jama.*;
import java.io.*;
import java.util.zip.GZIPInputStream;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.util.Locale;
/** TestMatrix tests the functionality of the Jama Matrix class and associated decompositions.
<P>
Run the test from the command line using
<BLOCKQUOTE>
java Jama.test.TestMatrix
</CODE>
Detailed output is provided indicating the functionality being tested
and whether the functionality is correctly implemented. Exception handling
is also tested.
<P>
The test is designed to run to completion and give a summary of any implementation errors
encountered. The final output should be:
<BLOCKQUOTE>
TestMatrix completed.
Total errors reported: n1
Total warning reported: n2
</CODE>
If the test does not run to completion, this indicates that there is a
substantial problem within the implementation that was not anticipated in the test design.
The stopping point should give an indication of where the problem exists.
**/
public class TestMatrix {
public static void main (String argv[]) {
Matrix A,B,C,Z,O,I,R,S,X,SUB,M,T,SQ,DEF,SOL;
// Uncomment this to test IO in a different locale.
// Locale.setDefault(Locale.GERMAN);
int errorCount=0;
int warningCount=0;
double tmp, s;
double[] columnwise = {1.,2.,3.,4.,5.,6.,7.,8.,9.,10.,11.,12.};
double[] rowwise = {1.,4.,7.,10.,2.,5.,8.,11.,3.,6.,9.,12.};
double[][] avals = {{1.,4.,7.,10.},{2.,5.,8.,11.},{3.,6.,9.,12.}};
double[][] rankdef = avals;
double[][] tvals = {{1.,2.,3.},{4.,5.,6.},{7.,8.,9.},{10.,11.,12.}};
double[][] subavals = {{5.,8.,11.},{6.,9.,12.}};
double[][] rvals = {{1.,4.,7.},{2.,5.,8.,11.},{3.,6.,9.,12.}};
double[][] pvals = {{4.,1.,1.},{1.,2.,3.},{1.,3.,6.}};
double[][] ivals = {{1.,0.,0.,0.},{0.,1.,0.,0.},{0.,0.,1.,0.}};
double[][] evals =
{{0.,1.,0.,0.},{1.,0.,2.e-7,0.},{0.,-2.e-7,0.,1.},{0.,0.,1.,0.}};
double[][] square = {{166.,188.,210.},{188.,214.,240.},{210.,240.,270.}};
double[][] sqSolution = {{13.},{15.}};
double[][] condmat = {{1.,3.},{7.,9.}};
double[][] badeigs = {{0,0,0,0,0}, {0,0,0,0,1},{0,0,0,1,0},
{1,1,0,0,1},{1,0,1,0,1}};
int rows=3,cols=4;
int invalidld=5;/* should trigger bad shape for construction with val */
int raggedr=0; /* (raggedr,raggedc) should be out of bounds in ragged array */
int raggedc=4;
int validld=3; /* leading dimension of intended test Matrices */
int nonconformld=4; /* leading dimension which is valid, but nonconforming */
int ib=1,ie=2,jb=1,je=3; /* index ranges for sub Matrix */
int[] rowindexset = {1,2};
int[] badrowindexset = {1,3};
int[] columnindexset = {1,2,3};
int[] badcolumnindexset = {1,2,4};
double columnsummax = 33.;
double rowsummax = 30.;
double sumofdiagonals = 15;
double sumofsquares = 650;
/**
Constructors and constructor-like methods:
double[], int
double[][]
int, int
int, int, double
int, int, double[][]
constructWithCopy(double[][])
random(int,int)
identity(int)
**/
print("\nTesting constructors and constructor-like methods...\n");
try{
/** check that exception is thrown in packed constructor with invalid length **/
A = new Matrix(columnwise,invalidld);
errorCount = try_failure(errorCount,"Catch invalid length in packed constructor... ",
"exception not thrown for invalid input");
} catch ( IllegalArgumentException e ) {
try_success("Catch invalid length in packed constructor... ",
e.getMessage());
}
try{
/** check that exception is thrown in default constructor
if input array is 'ragged' **/
A = new Matrix(rvals);
tmp = A.get(raggedr,raggedc);
} catch ( IllegalArgumentException e ) {
try_success("Catch ragged input to default constructor... ",
e.getMessage());
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
errorCount = try_failure(errorCount,"Catch ragged input to constructor... ",
"exception not thrown in construction...ArrayIndexOutOfBoundsException thrown later");
}
try{
/** check that exception is thrown in constructWithCopy
if input array is 'ragged' **/
A = Matrix.constructWithCopy(rvals);
tmp = A.get(raggedr,raggedc);
} catch ( IllegalArgumentException e ) {
try_success("Catch ragged input to constructWithCopy... ",e.getMessage());
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
errorCount = try_failure(errorCount,"Catch ragged input to constructWithCopy... ","exception not thrown in construction...ArrayIndexOutOfBoundsException thrown later");
}
A = new Matrix(columnwise,validld);
B = new Matrix(avals);
tmp = B.get(0,0);
avals[0][0] = 0.0;
C = B.minus(A);
avals[0][0] = tmp;
B = Matrix.constructWithCopy(avals);
tmp = B.get(0,0);
avals[0][0] = 0.0;
if ( ( tmp - B.get(0,0) ) != 0.0 ) {
/** check that constructWithCopy behaves properly **/
errorCount = try_failure(errorCount,"constructWithCopy... ","copy not effected... data visible outside");
} else {
try_success("constructWithCopy... ","");
}
avals[0][0] = columnwise[0];
I = new Matrix(ivals);
try {
check(I,Matrix.identity(3,4));
try_success("identity... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"identity... ","identity Matrix not successfully created");
}
/**
Access Methods:
getColumnDimension()
getRowDimension()
getArray()
getArrayCopy()
getColumnPackedCopy()
getRowPackedCopy()
get(int,int)
getMatrix(int,int,int,int)
getMatrix(int,int,int[])
getMatrix(int[],int,int)
getMatrix(int[],int[])
set(int,int,double)
setMatrix(int,int,int,int,Matrix)
setMatrix(int,int,int[],Matrix)
setMatrix(int[],int,int,Matrix)
setMatrix(int[],int[],Matrix)
**/
print("\nTesting access methods...\n");
/**
Various get methods:
**/
B = new Matrix(avals);
if (B.getRowDimension() != rows) {
errorCount = try_failure(errorCount,"getRowDimension... ","");
} else {
try_success("getRowDimension... ","");
}
if (B.getColumnDimension() != cols) {
errorCount = try_failure(errorCount,"getColumnDimension... ","");
} else {
try_success("getColumnDimension... ","");
}
B = new Matrix(avals);
double[][] barray = B.getArray();
if ( barray != avals ) {
errorCount = try_failure(errorCount,"getArray... ","");
} else {
try_success("getArray... ","");
}
barray = B.getArrayCopy();
if ( barray == avals ) {
errorCount = try_failure(errorCount,"getArrayCopy... ","data not (deep) copied");
}
try {
check(barray,avals);
try_success("getArrayCopy... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"getArrayCopy... ","data not successfully (deep) copied");
}
double[] bpacked = B.getColumnPackedCopy();
try {
check(bpacked,columnwise);
try_success("getColumnPackedCopy... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"getColumnPackedCopy... ","data not successfully (deep) copied by columns");
}
bpacked = B.getRowPackedCopy();
try {
check(bpacked,rowwise);
try_success("getRowPackedCopy... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"getRowPackedCopy... ","data not successfully (deep) copied by rows");
}
try {
tmp = B.get(B.getRowDimension(),B.getColumnDimension()-1);
errorCount = try_failure(errorCount,"get(int,int)... ","OutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
try {
tmp = B.get(B.getRowDimension()-1,B.getColumnDimension());
errorCount = try_failure(errorCount,"get(int,int)... ","OutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
try_success("get(int,int)... OutofBoundsException... ","");
}
} catch ( java.lang.IllegalArgumentException e1 ) {
errorCount = try_failure(errorCount,"get(int,int)... ","OutOfBoundsException expected but not thrown");
}
try {
if (B.get(B.getRowDimension()-1,B.getColumnDimension()-1) !=
avals[B.getRowDimension()-1][B.getColumnDimension()-1] ) {
errorCount = try_failure(errorCount,"get(int,int)... ","Matrix entry (i,j) not successfully retreived");
} else {
try_success("get(int,int)... ","");
}
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
errorCount = try_failure(errorCount,"get(int,int)... ","Unexpected ArrayIndexOutOfBoundsException");
}
SUB = new Matrix(subavals);
try {
M = B.getMatrix(ib,ie+B.getRowDimension()+1,jb,je);
errorCount = try_failure(errorCount,"getMatrix(int,int,int,int)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
try {
M = B.getMatrix(ib,ie,jb,je+B.getColumnDimension()+1);
errorCount = try_failure(errorCount,"getMatrix(int,int,int,int)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
try_success("getMatrix(int,int,int,int)... ArrayIndexOutOfBoundsException... ","");
}
} catch ( java.lang.IllegalArgumentException e1 ) {
errorCount = try_failure(errorCount,"getMatrix(int,int,int,int)... ","ArrayIndexOutOfBoundsException expected but not thrown");
}
try {
M = B.getMatrix(ib,ie,jb,je);
try {
check(SUB,M);
try_success("getMatrix(int,int,int,int)... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"getMatrix(int,int,int,int)... ","submatrix not successfully retreived");
}
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
errorCount = try_failure(errorCount,"getMatrix(int,int,int,int)... ","Unexpected ArrayIndexOutOfBoundsException");
}
try {
M = B.getMatrix(ib,ie,badcolumnindexset);
errorCount = try_failure(errorCount,"getMatrix(int,int,int[])... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
try {
M = B.getMatrix(ib,ie+B.getRowDimension()+1,columnindexset);
errorCount = try_failure(errorCount,"getMatrix(int,int,int[])... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
try_success("getMatrix(int,int,int[])... ArrayIndexOutOfBoundsException... ","");
}
} catch ( java.lang.IllegalArgumentException e1 ) {
errorCount = try_failure(errorCount,"getMatrix(int,int,int[])... ","ArrayIndexOutOfBoundsException expected but not thrown");
}
try {
M = B.getMatrix(ib,ie,columnindexset);
try {
check(SUB,M);
try_success("getMatrix(int,int,int[])... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"getMatrix(int,int,int[])... ","submatrix not successfully retreived");
}
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
errorCount = try_failure(errorCount,"getMatrix(int,int,int[])... ","Unexpected ArrayIndexOutOfBoundsException");
}
try {
M = B.getMatrix(badrowindexset,jb,je);
errorCount = try_failure(errorCount,"getMatrix(int[],int,int)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
try {
M = B.getMatrix(rowindexset,jb,je+B.getColumnDimension()+1);
errorCount = try_failure(errorCount,"getMatrix(int[],int,int)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
try_success("getMatrix(int[],int,int)... ArrayIndexOutOfBoundsException... ","");
}
} catch ( java.lang.IllegalArgumentException e1 ) {
errorCount = try_failure(errorCount,"getMatrix(int[],int,int)... ","ArrayIndexOutOfBoundsException expected but not thrown");
}
try {
M = B.getMatrix(rowindexset,jb,je);
try {
check(SUB,M);
try_success("getMatrix(int[],int,int)... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"getMatrix(int[],int,int)... ","submatrix not successfully retreived");
}
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
errorCount = try_failure(errorCount,"getMatrix(int[],int,int)... ","Unexpected ArrayIndexOutOfBoundsException");
}
try {
M = B.getMatrix(badrowindexset,columnindexset);
errorCount = try_failure(errorCount,"getMatrix(int[],int[])... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
try {
M = B.getMatrix(rowindexset,badcolumnindexset);
errorCount = try_failure(errorCount,"getMatrix(int[],int[])... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
try_success("getMatrix(int[],int[])... ArrayIndexOutOfBoundsException... ","");
}
} catch ( java.lang.IllegalArgumentException e1 ) {
errorCount = try_failure(errorCount,"getMatrix(int[],int[])... ","ArrayIndexOutOfBoundsException expected but not thrown");
}
try {
M = B.getMatrix(rowindexset,columnindexset);
try {
check(SUB,M);
try_success("getMatrix(int[],int[])... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"getMatrix(int[],int[])... ","submatrix not successfully retreived");
}
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
errorCount = try_failure(errorCount,"getMatrix(int[],int[])... ","Unexpected ArrayIndexOutOfBoundsException");
}
/**
Various set methods:
**/
try {
B.set(B.getRowDimension(),B.getColumnDimension()-1,0.);
errorCount = try_failure(errorCount,"set(int,int,double)... ","OutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
try {
B.set(B.getRowDimension()-1,B.getColumnDimension(),0.);
errorCount = try_failure(errorCount,"set(int,int,double)... ","OutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
try_success("set(int,int,double)... OutofBoundsException... ","");
}
} catch ( java.lang.IllegalArgumentException e1 ) {
errorCount = try_failure(errorCount,"set(int,int,double)... ","OutOfBoundsException expected but not thrown");
}
try {
B.set(ib,jb,0.);
tmp = B.get(ib,jb);
try {
check(tmp,0.);
try_success("set(int,int,double)... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"set(int,int,double)... ","Matrix element not successfully set");
}
} catch ( java.lang.ArrayIndexOutOfBoundsException e1) {
errorCount = try_failure(errorCount,"set(int,int,double)... ","Unexpected ArrayIndexOutOfBoundsException");
}
M = new Matrix(2,3,0.);
try {
B.setMatrix(ib,ie+B.getRowDimension()+1,jb,je,M);
errorCount = try_failure(errorCount,"setMatrix(int,int,int,int,Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
try {
B.setMatrix(ib,ie,jb,je+B.getColumnDimension()+1,M);
errorCount = try_failure(errorCount,"setMatrix(int,int,int,int,Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
try_success("setMatrix(int,int,int,int,Matrix)... ArrayIndexOutOfBoundsException... ","");
}
} catch ( java.lang.IllegalArgumentException e1 ) {
errorCount = try_failure(errorCount,"setMatrix(int,int,int,int,Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
}
try {
B.setMatrix(ib,ie,jb,je,M);
try {
check(M.minus(B.getMatrix(ib,ie,jb,je)),M);
try_success("setMatrix(int,int,int,int,Matrix)... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"setMatrix(int,int,int,int,Matrix)... ","submatrix not successfully set");
}
B.setMatrix(ib,ie,jb,je,SUB);
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
errorCount = try_failure(errorCount,"setMatrix(int,int,int,int,Matrix)... ","Unexpected ArrayIndexOutOfBoundsException");
}
try {
B.setMatrix(ib,ie+B.getRowDimension()+1,columnindexset,M);
errorCount = try_failure(errorCount,"setMatrix(int,int,int[],Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
try {
B.setMatrix(ib,ie,badcolumnindexset,M);
errorCount = try_failure(errorCount,"setMatrix(int,int,int[],Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
try_success("setMatrix(int,int,int[],Matrix)... ArrayIndexOutOfBoundsException... ","");
}
} catch ( java.lang.IllegalArgumentException e1 ) {
errorCount = try_failure(errorCount,"setMatrix(int,int,int[],Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
}
try {
B.setMatrix(ib,ie,columnindexset,M);
try {
check(M.minus(B.getMatrix(ib,ie,columnindexset)),M);
try_success("setMatrix(int,int,int[],Matrix)... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"setMatrix(int,int,int[],Matrix)... ","submatrix not successfully set");
}
B.setMatrix(ib,ie,jb,je,SUB);
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
errorCount = try_failure(errorCount,"setMatrix(int,int,int[],Matrix)... ","Unexpected ArrayIndexOutOfBoundsException");
}
try {
B.setMatrix(rowindexset,jb,je+B.getColumnDimension()+1,M);
errorCount = try_failure(errorCount,"setMatrix(int[],int,int,Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
try {
B.setMatrix(badrowindexset,jb,je,M);
errorCount = try_failure(errorCount,"setMatrix(int[],int,int,Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
try_success("setMatrix(int[],int,int,Matrix)... ArrayIndexOutOfBoundsException... ","");
}
} catch ( java.lang.IllegalArgumentException e1 ) {
errorCount = try_failure(errorCount,"setMatrix(int[],int,int,Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
}
try {
B.setMatrix(rowindexset,jb,je,M);
try {
check(M.minus(B.getMatrix(rowindexset,jb,je)),M);
try_success("setMatrix(int[],int,int,Matrix)... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"setMatrix(int[],int,int,Matrix)... ","submatrix not successfully set");
}
B.setMatrix(ib,ie,jb,je,SUB);
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
errorCount = try_failure(errorCount,"setMatrix(int[],int,int,Matrix)... ","Unexpected ArrayIndexOutOfBoundsException");
}
try {
B.setMatrix(rowindexset,badcolumnindexset,M);
errorCount = try_failure(errorCount,"setMatrix(int[],int[],Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e ) {
try {
B.setMatrix(badrowindexset,columnindexset,M);
errorCount = try_failure(errorCount,"setMatrix(int[],int[],Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
try_success("setMatrix(int[],int[],Matrix)... ArrayIndexOutOfBoundsException... ","");
}
} catch ( java.lang.IllegalArgumentException e1 ) {
errorCount = try_failure(errorCount,"setMatrix(int[],int[],Matrix)... ","ArrayIndexOutOfBoundsException expected but not thrown");
}
try {
B.setMatrix(rowindexset,columnindexset,M);
try {
check(M.minus(B.getMatrix(rowindexset,columnindexset)),M);
try_success("setMatrix(int[],int[],Matrix)... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"setMatrix(int[],int[],Matrix)... ","submatrix not successfully set");
}
} catch ( java.lang.ArrayIndexOutOfBoundsException e1 ) {
errorCount = try_failure(errorCount,"setMatrix(int[],int[],Matrix)... ","Unexpected ArrayIndexOutOfBoundsException");
}
/**
Array-like methods:
minus
minusEquals
plus
plusEquals
arrayLeftDivide
arrayLeftDivideEquals
arrayRightDivide
arrayRightDivideEquals
arrayTimes
arrayTimesEquals
uminus
**/
print("\nTesting array-like methods...\n");
S = new Matrix(columnwise,nonconformld);
R = Matrix.random(A.getRowDimension(),A.getColumnDimension());
A = R;
try {
S = A.minus(S);
errorCount = try_failure(errorCount,"minus conformance check... ","nonconformance not raised");
} catch ( IllegalArgumentException e ) {
try_success("minus conformance check... ","");
}
if (A.minus(R).norm1() != 0.) {
errorCount = try_failure(errorCount,"minus... ","(difference of identical Matrices is nonzero,\nSubsequent use of minus should be suspect)");
} else {
try_success("minus... ","");
}
A = R.copy();
A.minusEquals(R);
Z = new Matrix(A.getRowDimension(),A.getColumnDimension());
try {
A.minusEquals(S);
errorCount = try_failure(errorCount,"minusEquals conformance check... ","nonconformance not raised");
} catch ( IllegalArgumentException e ) {
try_success("minusEquals conformance check... ","");
}
if (A.minus(Z).norm1() != 0.) {
errorCount = try_failure(errorCount,"minusEquals... ","(difference of identical Matrices is nonzero,\nSubsequent use of minus should be suspect)");
} else {
try_success("minusEquals... ","");
}
A = R.copy();
B = Matrix.random(A.getRowDimension(),A.getColumnDimension());
C = A.minus(B);
try {
S = A.plus(S);
errorCount = try_failure(errorCount,"plus conformance check... ","nonconformance not raised");
} catch ( IllegalArgumentException e ) {
try_success("plus conformance check... ","");
}
try {
check(C.plus(B),A);
try_success("plus... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"plus... ","(C = A - B, but C + B != A)");
}
C = A.minus(B);
C.plusEquals(B);
try {
A.plusEquals(S);
errorCount = try_failure(errorCount,"plusEquals conformance check... ","nonconformance not raised");
} catch ( IllegalArgumentException e ) {
try_success("plusEquals conformance check... ","");
}
try {
check(C,A);
try_success("plusEquals... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"plusEquals... ","(C = A - B, but C = C + B != A)");
}
A = R.uminus();
try {
check(A.plus(R),Z);
try_success("uminus... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"uminus... ","(-A + A != zeros)");
}
A = R.copy();
O = new Matrix(A.getRowDimension(),A.getColumnDimension(),1.0);
C = A.arrayLeftDivide(R);
try {
S = A.arrayLeftDivide(S);
errorCount = try_failure(errorCount,"arrayLeftDivide conformance check... ","nonconformance not raised");
} catch ( IllegalArgumentException e ) {
try_success("arrayLeftDivide conformance check... ","");
}
try {
check(C,O);
try_success("arrayLeftDivide... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"arrayLeftDivide... ","(M.\\M != ones)");
}
try {
A.arrayLeftDivideEquals(S);
errorCount = try_failure(errorCount,"arrayLeftDivideEquals conformance check... ","nonconformance not raised");
} catch ( IllegalArgumentException e ) {
try_success("arrayLeftDivideEquals conformance check... ","");
}
A.arrayLeftDivideEquals(R);
try {
check(A,O);
try_success("arrayLeftDivideEquals... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"arrayLeftDivideEquals... ","(M.\\M != ones)");
}
A = R.copy();
try {
A.arrayRightDivide(S);
errorCount = try_failure(errorCount,"arrayRightDivide conformance check... ","nonconformance not raised");
} catch ( IllegalArgumentException e ) {
try_success("arrayRightDivide conformance check... ","");
}
C = A.arrayRightDivide(R);
try {
check(C,O);
try_success("arrayRightDivide... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"arrayRightDivide... ","(M./M != ones)");
}
try {
A.arrayRightDivideEquals(S);
errorCount = try_failure(errorCount,"arrayRightDivideEquals conformance check... ","nonconformance not raised");
} catch ( IllegalArgumentException e ) {
try_success("arrayRightDivideEquals conformance check... ","");
}
A.arrayRightDivideEquals(R);
try {
check(A,O);
try_success("arrayRightDivideEquals... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"arrayRightDivideEquals... ","(M./M != ones)");
}
A = R.copy();
B = Matrix.random(A.getRowDimension(),A.getColumnDimension());
try {
S = A.arrayTimes(S);
errorCount = try_failure(errorCount,"arrayTimes conformance check... ","nonconformance not raised");
} catch ( IllegalArgumentException e ) {
try_success("arrayTimes conformance check... ","");
}
C = A.arrayTimes(B);
try {
check(C.arrayRightDivideEquals(B),A);
try_success("arrayTimes... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"arrayTimes... ","(A = R, C = A.*B, but C./B != A)");
}
try {
A.arrayTimesEquals(S);
errorCount = try_failure(errorCount,"arrayTimesEquals conformance check... ","nonconformance not raised");
} catch ( IllegalArgumentException e ) {
try_success("arrayTimesEquals conformance check... ","");
}
A.arrayTimesEquals(B);
try {
check(A.arrayRightDivideEquals(B),R);
try_success("arrayTimesEquals... ","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"arrayTimesEquals... ","(A = R, A = A.*B, but A./B != R)");
}
/**
I/O methods:
read
print
serializable:
writeObject
readObject
**/
print("\nTesting I/O methods...\n");
try {
DecimalFormat fmt = new DecimalFormat("0.0000E00");
fmt.setDecimalFormatSymbols(new DecimalFormatSymbols(Locale.US));
PrintWriter FILE = new PrintWriter(new FileOutputStream("JamaTestMatrix.out"));
A.print(FILE,fmt,10);
FILE.close();
R = Matrix.read(new BufferedReader(new FileReader("JamaTestMatrix.out")));
if (A.minus(R).norm1() < .001 ) {
try_success("print()/read()...","");
} else {
errorCount = try_failure(errorCount,"print()/read()...","Matrix read from file does not match Matrix printed to file");
}
} catch ( java.io.IOException ioe ) {
warningCount = try_warning(warningCount,"print()/read()...","unexpected I/O error, unable to run print/read test; check write permission in current directory and retry");
} catch(Exception e) {
try {
e.printStackTrace(System.out);
warningCount = try_warning(warningCount,"print()/read()...","Formatting error... will try JDK1.1 reformulation...");
DecimalFormat fmt = new DecimalFormat("0.0000");
PrintWriter FILE = new PrintWriter(new FileOutputStream("JamaTestMatrix.out"));
A.print(FILE,fmt,10);
FILE.close();
R = Matrix.read(new BufferedReader(new FileReader("JamaTestMatrix.out")));
if (A.minus(R).norm1() < .001 ) {
try_success("print()/read()...","");
} else {
errorCount = try_failure(errorCount,"print()/read() (2nd attempt) ...","Matrix read from file does not match Matrix printed to file");
}
} catch ( java.io.IOException ioe ) {
warningCount = try_warning(warningCount,"print()/read()...","unexpected I/O error, unable to run print/read test; check write permission in current directory and retry");
}
}
R = Matrix.random(A.getRowDimension(),A.getColumnDimension());
String tmpname = "TMPMATRIX.serial";
try {
ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(tmpname));
out.writeObject(R);
ObjectInputStream sin = new ObjectInputStream(new FileInputStream(tmpname));
A = (Matrix) sin.readObject();
try {
check(A,R);
try_success("writeObject(Matrix)/readObject(Matrix)...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"writeObject(Matrix)/readObject(Matrix)...","Matrix not serialized correctly");
}
} catch ( java.io.IOException ioe ) {
warningCount = try_warning(warningCount,"writeObject()/readObject()...","unexpected I/O error, unable to run serialization test; check write permission in current directory and retry");
} catch(Exception e) {
errorCount = try_failure(errorCount,"writeObject(Matrix)/readObject(Matrix)...","unexpected error in serialization test");
}
/**
LA methods:
transpose
times
cond
rank
det
trace
norm1
norm2
normF
normInf
solve
solveTranspose
inverse
chol
eig
lu
qr
svd
**/
print("\nTesting linear algebra methods...\n");
A = new Matrix(columnwise,3);
T = new Matrix(tvals);
T = A.transpose();
try {
check(A.transpose(),T);
try_success("transpose...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"transpose()...","transpose unsuccessful");
}
A.transpose();
try {
check(A.norm1(),columnsummax);
try_success("norm1...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"norm1()...","incorrect norm calculation");
}
try {
check(A.normInf(),rowsummax);
try_success("normInf()...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"normInf()...","incorrect norm calculation");
}
try {
check(A.normF(),Math.sqrt(sumofsquares));
try_success("normF...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"normF()...","incorrect norm calculation");
}
try {
check(A.trace(),sumofdiagonals);
try_success("trace()...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"trace()...","incorrect trace calculation");
}
try {
check(A.getMatrix(0,A.getRowDimension()-1,0,A.getRowDimension()-1).det(),0.);
try_success("det()...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"det()...","incorrect determinant calculation");
}
SQ = new Matrix(square);
try {
check(A.times(A.transpose()),SQ);
try_success("times(Matrix)...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"times(Matrix)...","incorrect Matrix-Matrix product calculation");
}
try {
check(A.times(0.),Z);
try_success("times(double)...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"times(double)...","incorrect Matrix-scalar product calculation");
}
A = new Matrix(columnwise,4);
QRDecomposition QR = A.qr();
R = QR.getR();
try {
check(A,QR.getQ().times(R));
try_success("QRDecomposition...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"QRDecomposition...","incorrect QR decomposition calculation");
}
SingularValueDecomposition SVD = A.svd();
try {
check(A,SVD.getU().times(SVD.getS().times(SVD.getV().transpose())));
try_success("SingularValueDecomposition...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"SingularValueDecomposition...","incorrect singular value decomposition calculation");
}
DEF = new Matrix(rankdef);
try {
check(DEF.rank(),Math.min(DEF.getRowDimension(),DEF.getColumnDimension())-1);
try_success("rank()...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"rank()...","incorrect rank calculation");
}
B = new Matrix(condmat);
SVD = B.svd();
double [] singularvalues = SVD.getSingularValues();
try {
check(B.cond(),singularvalues[0]/singularvalues[Math.min(B.getRowDimension(),B.getColumnDimension())-1]);
try_success("cond()...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"cond()...","incorrect condition number calculation");
}
int n = A.getColumnDimension();
A = A.getMatrix(0,n-1,0,n-1);
A.set(0,0,0.);
LUDecomposition LU = A.lu();
try {
check(A.getMatrix(LU.getPivot(),0,n-1),LU.getL().times(LU.getU()));
try_success("LUDecomposition...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"LUDecomposition...","incorrect LU decomposition calculation");
}
X = A.inverse();
try {
check(A.times(X),Matrix.identity(3,3));
try_success("inverse()...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"inverse()...","incorrect inverse calculation");
}
O = new Matrix(SUB.getRowDimension(),1,1.0);
SOL = new Matrix(sqSolution);
SQ = SUB.getMatrix(0,SUB.getRowDimension()-1,0,SUB.getRowDimension()-1);
try {
check(SQ.solve(SOL),O);
try_success("solve()...","");
} catch ( java.lang.IllegalArgumentException e1 ) {
errorCount = try_failure(errorCount,"solve()...",e1.getMessage());
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"solve()...",e.getMessage());
}
A = new Matrix(pvals);
CholeskyDecomposition Chol = A.chol();
Matrix L = Chol.getL();
try {
check(A,L.times(L.transpose()));
try_success("CholeskyDecomposition...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"CholeskyDecomposition...","incorrect Cholesky decomposition calculation");
}
X = Chol.solve(Matrix.identity(3,3));
try {
check(A.times(X),Matrix.identity(3,3));
try_success("CholeskyDecomposition solve()...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"CholeskyDecomposition solve()...","incorrect Choleskydecomposition solve calculation");
}
EigenvalueDecomposition Eig = A.eig();
Matrix D = Eig.getD();
Matrix V = Eig.getV();
try {
check(A.times(V),V.times(D));
try_success("EigenvalueDecomposition (symmetric)...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"EigenvalueDecomposition (symmetric)...","incorrect symmetric Eigenvalue decomposition calculation");
}
A = new Matrix(evals);
Eig = A.eig();
D = Eig.getD();
V = Eig.getV();
try {
check(A.times(V),V.times(D));
try_success("EigenvalueDecomposition (nonsymmetric)...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"EigenvalueDecomposition (nonsymmetric)...","incorrect nonsymmetric Eigenvalue decomposition calculation");
}
try {
print("\nTesting Eigenvalue; If this hangs, we've failed\n");
Matrix bA = new Matrix(badeigs);
EigenvalueDecomposition bEig = bA.eig();
try_success("EigenvalueDecomposition (hang)...","");
} catch ( java.lang.RuntimeException e ) {
errorCount = try_failure(errorCount,"EigenvalueDecomposition (hang)...",
"incorrect termination");
}
print("\nTestMatrix completed.\n");
print("Total errors reported: " + Integer.toString(errorCount) + "\n");
print("Total warnings reported: " + Integer.toString(warningCount) + "\n");
}
/** private utility routines **/
/** Check magnitude of difference of scalars. **/
private static void check(double x, double y) {
double eps = Math.pow(2.0,-52.0);
if (x == 0 & Math.abs(y) < 10*eps) return;
if (y == 0 & Math.abs(x) < 10*eps) return;
if (Math.abs(x-y) > 10*eps*Math.max(Math.abs(x),Math.abs(y))) {
throw new RuntimeException("The difference x-y is too large: x = " + Double.toString(x) + " y = " + Double.toString(y));
}
}
/** Check norm of difference of "vectors". **/
private static void check(double[] x, double[] y) {
if (x.length == y.length ) {
for (int i=0;i<x.length;i++) {
check(x[i],y[i]);
}
} else {
throw new RuntimeException("Attempt to compare vectors of different lengths");
}
}
/** Check norm of difference of arrays. **/
private static void check(double[][] x, double[][] y) {
Matrix A = new Matrix(x);
Matrix B = new Matrix(y);
check(A,B);
}
/** Check norm of difference of Matrices. **/
private static void check(Matrix X, Matrix Y) {
double eps = Math.pow(2.0,-52.0);
if (X.norm1() == 0. & Y.norm1() < 10*eps) return;
if (Y.norm1() == 0. & X.norm1() < 10*eps) return;
if (X.minus(Y).norm1() > 1000*eps*Math.max(X.norm1(),Y.norm1())) {
throw new RuntimeException("The norm of (X-Y) is too large: " + Double.toString(X.minus(Y).norm1()));
}
}
/** Shorten spelling of print. **/
private static void print (String s) {
System.out.print(s);
}
/** Print appropriate messages for successful outcome try **/
private static void try_success (String s,String e) {
print("> " + s + "success\n");
if ( e != "" ) {
print("> Message: " + e + "\n");
}
}
/** Print appropriate messages for unsuccessful outcome try **/
private static int try_failure (int count, String s,String e) {
print("> " + s + "*** failure ***\n> Message: " + e + "\n");
return ++count;
}
/** Print appropriate messages for unsuccessful outcome try **/
private static int try_warning (int count, String s,String e) {
print("> " + s + "*** warning ***\n> Message: " + e + "\n");
return ++count;
}
/** Print a row vector. **/
private static void print(double[] x, int w, int d) {
// Use format Fw.d for all elements.
System.out.print("\n");
new Matrix(x,1).print(w,d);
print("\n");
}
}
Other Java examples (source code examples)
Here is a short list of links related to this Java TestMatrix.java source code file:
|
The search page
Other Java source code examples at this package level
Click here to learn more about this project
