new linear class: Gaussian Density

.cproject

@@ -258,6 +258,14 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="testGaussianFactor.run" path="linear/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testGaussianFactor.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="all" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -284,7 +292,6 @@
 			</target>
 			<target name="tests/testBayesTree.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>tests/testBayesTree.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -292,7 +299,6 @@
 			</target>
 			<target name="testBinaryBayesNet.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testBinaryBayesNet.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -340,7 +346,6 @@
 			</target>
 			<target name="testSymbolicBayesNet.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testSymbolicBayesNet.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -348,7 +353,6 @@
 			</target>
 			<target name="tests/testSymbolicFactor.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>tests/testSymbolicFactor.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -356,7 +360,6 @@
 			</target>
 			<target name="testSymbolicFactorGraph.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testSymbolicFactorGraph.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -372,20 +375,11 @@
 			</target>
 			<target name="tests/testBayesTree" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>tests/testBayesTree</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="testGaussianFactor.run" path="linear/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testGaussianFactor.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
 			<target name="check" path="tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -412,6 +406,7 @@
 			</target>
 			<target name="testGraph.run" path="tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testGraph.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -483,6 +478,7 @@
 			</target>
 			<target name="testInference.run" path="tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testInference.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -490,6 +486,7 @@
 			</target>
 			<target name="testGaussianFactor.run" path="tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testGaussianFactor.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -497,6 +494,7 @@
 			</target>
 			<target name="testJunctionTree.run" path="tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testJunctionTree.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -504,6 +502,7 @@
 			</target>
 			<target name="testSymbolicBayesNet.run" path="tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testSymbolicBayesNet.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -511,6 +510,7 @@
 			</target>
 			<target name="testSymbolicFactorGraph.run" path="tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testSymbolicFactorGraph.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -580,22 +580,6 @@
 				<useDefaultCommand>false</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="tests/testPose2.run" path="build_retract/gtsam/geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>tests/testPose2.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="tests/testPose3.run" path="build_retract/gtsam/geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>tests/testPose3.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
 			<target name="all" path="CppUnitLite" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -612,6 +596,22 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="tests/testPose2.run" path="build_retract/gtsam/geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>tests/testPose2.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="tests/testPose3.run" path="build_retract/gtsam/geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>tests/testPose3.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="all" path="spqr_mini" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -636,15 +636,7 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="all" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="check" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>all</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="check" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
 				<buildTarget>check</buildTarget>
@@ -652,14 +644,6 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="clean" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>clean</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
 			<target name="tests/testGeneralSFMFactor.run" path="build/gtsam/slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -700,7 +684,15 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="check" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="all" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>all</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="check" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
 				<buildTarget>check</buildTarget>
@@ -708,6 +700,14 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="clean" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>clean</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="check" path="build/geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -1038,7 +1038,6 @@
 			</target>
 			<target name="testErrors.run" path="linear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testErrors.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1494,6 +1493,7 @@
 			</target>
 			<target name="testSimulated2DOriented.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testSimulated2DOriented.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1533,6 +1533,7 @@
 			</target>
 			<target name="testSimulated2D.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testSimulated2D.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1540,6 +1541,7 @@
 			</target>
 			<target name="testSimulated3D.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testSimulated3D.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1800,6 +1802,14 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="tests/testGaussianDensity.run" path="build/gtsam/linear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>tests/testGaussianDensity.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="SimpleRotation.run" path="build/examples" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -1890,6 +1900,7 @@
 			</target>
 			<target name="tests/testGaussianISAM2" path="build/slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>tests/testGaussianISAM2</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1911,46 +1922,6 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="install" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>install</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="clean" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>clean</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="check" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>check</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="all" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>all</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="dist" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>dist</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
 			<target name="testRot3.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -2047,6 +2018,94 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="install" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>install</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="clean" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>clean</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="check" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>check</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="all" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>all</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="dist" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>dist</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="check" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>check</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="install" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>install</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="tests/testSpirit.run" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>tests/testSpirit.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="tests/testWrap.run" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>tests/testWrap.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="clean" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>clean</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="all" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>all</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="check" path="build" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -2103,54 +2162,6 @@
 				<useDefaultCommand>false</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="check" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>check</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="install" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>install</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="tests/testSpirit.run" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>tests/testSpirit.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="tests/testWrap.run" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>tests/testWrap.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="clean" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>clean</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="all" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>all</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
 		</buildTargets>
 	</storageModule>
 </cproject>

gtsam/linear/GaussianDensity.cpp

@@ -0,0 +1,47 @@
+/* ----------------------------------------------------------------------------
+
+ * GTSAM Copyright 2010, Georgia Tech Research Corporation, 
+ * Atlanta, Georgia 30332-0415
+ * All Rights Reserved
+ * Authors: Frank Dellaert, et al. (see THANKS for the full author list)
+
+ * See LICENSE for the license information
+
+ * -------------------------------------------------------------------------- */
+
+/**
+ * @file    GaussianDensity.cpp
+ * @brief   A Gaussian Density
+ * @author  Frank Dellaert
+ * @date    Jan 21, 2012
+ */
+
+#include <gtsam/linear/GaussianDensity.h>
+
+using namespace std;
+
+namespace gtsam {
+
+	/* ************************************************************************* */
+	Vector GaussianDensity::mean() const {
+		// Solve for mean
+		VectorValues x;
+		Index k = firstFrontalKey();
+		// a VectorValues that only has a value for k: cannot be printed if k<>0
+		x.insert(k, Vector(sigmas_.size()));
+		rhs(x);
+		solveInPlace(x);
+		return x[k];
+	}
+
+	/* ************************************************************************* */
+	Matrix GaussianDensity::information() const {
+		return computeInformation();
+	}
+
+	/* ************************************************************************* */
+	Matrix GaussianDensity::covariance() const {
+		return inverse(information());
+	}
+
+} // gtsam

gtsam/linear/GaussianDensity.h

@@ -0,0 +1,70 @@
+/* ----------------------------------------------------------------------------
+
+ * GTSAM Copyright 2010, Georgia Tech Research Corporation, 
+ * Atlanta, Georgia 30332-0415
+ * All Rights Reserved
+ * Authors: Frank Dellaert, et al. (see THANKS for the full author list)
+
+ * See LICENSE for the license information
+
+ * -------------------------------------------------------------------------- */
+
+/**
+ * @file    GaussianDensity.h
+ * @brief   A Gaussian Density
+ * @author  Frank Dellaert
+ * @date    Jan 21, 2012
+ */
+
+// \callgraph
+#pragma once
+
+#include <gtsam/linear/GaussianConditional.h>
+
+namespace gtsam {
+
+	/**
+	 * A Gaussian density.
+	 *
+	 * It is implemented as a GaussianConditional without parents.
+	 * The negative log-probability is given by \f$ |Rx - d|^2 \f$
+	 * with \f$ \Lambda = \Sigma^{-1} = R^T R \f$ and \f$ \mu = R^{-1} d \f$
+	 */
+	class GaussianDensity: public GaussianConditional {
+
+	public:
+
+	protected:
+
+	public:
+
+		/// default constructor needed for serialization
+		GaussianDensity() :
+				GaussianConditional() {
+		}
+
+		// Copy constructor from GaussianConditional
+		GaussianDensity(const GaussianConditional& conditional) :
+				GaussianConditional(conditional) {
+			assert(conditional.nrParents() == 0);
+		}
+
+		/// constructor using d, R
+		GaussianDensity(Index key, const Vector& d, const Matrix& R,
+				const Vector& sigmas) :
+				GaussianConditional(key, d, R, sigmas) {
+		}
+
+		// Mean \f$ \mu = R^{-1} d \f$
+		Vector mean() const;
+
+		/// Information matrix \f$ \Lambda = R^T R \f$
+		Matrix information() const;
+
+		/// Covariance matrix \f$ \Sigma = (R^T R)^{-1} \f$
+		Matrix covariance() const;
+
+	};
+// GaussianDensity
+
+}// gtsam

gtsam/linear/Makefile.am

@@ -26,10 +26,10 @@ sources += GaussianSequentialSolver.cpp GaussianMultifrontalSolver.cpp
 sources += JacobianFactor.cpp HessianFactor.cpp
 sources += GaussianFactor.cpp GaussianFactorGraph.cpp
 sources += GaussianJunctionTree.cpp 
-sources += GaussianConditional.cpp GaussianBayesNet.cpp
+sources += GaussianConditional.cpp GaussianDensity.cpp GaussianBayesNet.cpp
 sources += GaussianISAM.cpp
 check_PROGRAMS += tests/testHessianFactor tests/testJacobianFactor tests/testGaussianConditional
-check_PROGRAMS += tests/testGaussianFactorGraph tests/testGaussianJunctionTree
+check_PROGRAMS +=  tests/testGaussianDensity tests/testGaussianFactorGraph tests/testGaussianJunctionTree
 
 # Kalman Filter
 sources += KalmanFilter.cpp

gtsam/linear/tests/testGaussianDensity.cpp

@@ -0,0 +1,42 @@
+/* ----------------------------------------------------------------------------
+
+ * GTSAM Copyright 2010, Georgia Tech Research Corporation, 
+ * Atlanta, Georgia 30332-0415
+ * All Rights Reserved
+ * Authors: Frank Dellaert, et al. (see THANKS for the full author list)
+
+ * See LICENSE for the license information
+
+ * -------------------------------------------------------------------------- */
+
+/**
+ *  @file   testGaussianDensity.cpp
+ *  @brief  Unit tests for Gaussian Density
+ *  @author Frank Dellaert
+ *  @date   Jan 21, 2012
+ **/
+
+#include <gtsam/linear/GaussianDensity.h>
+#include <CppUnitLite/TestHarness.h>
+
+using namespace gtsam;
+using namespace std;
+
+/* ************************************************************************* */
+TEST(GaussianDensity, constructor)
+{
+  Matrix R = Matrix_(2,2,
+      -12.1244,  -5.1962,
+            0.,   4.6904);
+
+  Vector d = Vector_(2, 1.0, 2.0), s = Vector_(2, 3.0, 4.0);
+  GaussianConditional conditional(1, d, R, s);
+
+  GaussianDensity copied(conditional);
+  EXPECT(assert_equal(d, copied.get_d()));
+  EXPECT(assert_equal(s, copied.get_sigmas()));
+}
+
+/* ************************************************************************* */
+int main() { TestResult tr; return TestRegistry::runAllTests(tr);}
+/* ************************************************************************* */