Hello I have a contour of the pressures over a surface. Basically, I had vectors x and y which were locations on the surface and on each location, I had a value for pressure. I have a rectangular plot. I was wondering if there is a way to split my plot from the diagonal and show just the results for either upper or lower triangles?
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Check out the tril and triu functions. For example if you have data similar to
[x,y]= meshgrid(-1:.05:1); z = x.^2+y.^2; contour(x,y,z)
Try something like
zLowerTri = tril(z); contour(x,y,zLowerTri)
Since contour plots with the origin at lower left instead of upper right, you may prefer either
zLowerTri = tril(z); contour(x,y,zLowerTri) axis ij
hello maryam, run following lines of code.
x=0:0.1:10; y=x; j=1; z=meshgrid(x,y); h=ones(length(x),length(x))*nan; for i=1:length(x) for j=1:length(y) if i>j h(i,j)=z(i,j); end end end surf(sin(h)./sqrt(h)) figure contourf(sin(h)./sqrt(h))
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