i have a 352800×1 vector . now i want to take only 300000 row elements .how can i cut last 352800-300000=52800 elements and make it a 300000×1 vector ??
MATLAB: Scaling a vector from 352800×1 to 300000×1 by cutting last 52800 row elements
MATLABvector
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Thanks Walter, but that's not the point, every third period has different power, and I need to remove it.
What about this?
clc,clear% generate surface
r = 0:0.1:5;t = linspace(0,2*pi,30);[T,R] = meshgrid(t,r);Z = 5*sin(R)./R;[X,Y] = pol2cart(T,R);% data for cutting
x = [1 3 0.7];y = [0.2 0.3 3];z = [1 1.2 1];ix = convhull(X(:),Y(:)); % boundary of surface
x1 = X(ix(1:end-2)); % vertices of boundary
y1 = Y(ix(1:end-2));gd1 = [2; length(x1); x1(:); y1(:)]; % surface boundary geometry
gd2 = gd1; gd2(1:2+2*length(x)) = [2; length(x); x(:); y(:)]; % cutting plane boundary geometry
dl = decsg([gd1 gd2],'P1-P2',char('P1','P2')'); % decomposite geometry
[p,e,t] = initmesh(dl,'hmax',0.5); % create mesh
F = scatteredInterpolant(X(:),Y(:),Z(:));zz = F(p(1,:),p(2,:)); % calculate Z coordinate for each mesh point
fv.vertices = [p;zz]'; % x y z data
fv.faces = t(1:3,:)'; % connection list of faces
clapatch(fv,'facecolor','r') % surface
patch(x,y,z,'g') % cutting plane
view(150,45)axis vis3d ix = convhull(X(:),Y(:)); % boundary of surface
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