Displaying 2 results from an estimated 2 matches for "boxratio".
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  boxratios
  
2003 Aug 30
1
3D plot of a bivariate normal distribution
...))*Exp[(-1/(2*(1-c^2)))*( 
          ((x-u)/Sqrt[a])^2 + ((y-v)/Sqrt[b])^2 
			- 2*c(((x-u)/Sqrt[a])((y-v)/Sqrt[b]))
								)]
{{a,c}, {c,b}} = {{1,0}, {0,1}};  The covariance Matrix
{u,v} = {0,0};                    Mean vector
Plot3D[NB[x,y],{x,-1.5,1.5},{y,-1.5,1.5},
		AxesLabel->{x,y,z},
		BoxRatios->{1,1,1}];
ContourPlot[NB[x,y],{x,-1,1},{y,-1,1},
		Axes->True, 
		AxesLabel->{x,y}];
3d graph rotation
Do[
	Plot3D[NB[x,y],{x,-1.5,1.5},{y,-1.5,1.5},
		PlotPoints->20,
		Mesh ->False,
		SphericalRegion ->True,
		Axes ->None,
		Boxed ->False,
		ViewPoint->{2 Cos[t], 2 S...
2003 Sep 01
0
Re: Plotting bivariate normal distributions.
...))*Exp[(-1/(2*(1-c^2)))*( 
          ((x-u)/Sqrt[a])^2 + ((y-v)/Sqrt[b])^2 
			- 2*c(((x-u)/Sqrt[a])((y-v)/Sqrt[b]))
								)]
{{a,c}, {c,b}} = {{1,0}, {0,1}};  The covariance Matrix
{u,v} = {0,0};                    Mean vector
Plot3D[NB[x,y],{x,-1.5,1.5},{y,-1.5,1.5},
		AxesLabel->{x,y,z},
		BoxRatios->{1,1,1}];
ContourPlot[NB[x,y],{x,-1,1},{y,-1,1},
		Axes->True, 
		AxesLabel->{x,y}];
3d graph rotation
Do[
	Plot3D[NB[x,y],{x,-1.5,1.5},{y,-1.5,1.5},
		PlotPoints->20,
		Mesh ->False,
		SphericalRegion ->True,
		Axes ->None,
		Boxed ->False,
		ViewPoint->{2 Cos[t], 2 S...