Hi all! I'm using MATLAB for the first time. I have downloaded data from yahoo finance and when i have to plot them, i have a problem on y of the graphic, where there are days of prices. I know about the problem but i m not able to convert from cell to double. I tried to see old answers on this forum but i continue to have problems. Thanks!
MATLAB: Problem with trasformation from cell to double (Plot S&P500)
from cell to double
Related Solutions
Try this
vec1 = [1;0;0];vec2 = [0;1;0];vec3 = [0;0;1];q_w=quiver3(zeros(3,1),zeros(3,1),zeros(3,1),vec1,vec2,vec3);q_w.LineWidth=3;q_w.AutoScaleFactor=8;psi = pi/4;theta = pi/3;fi = pi/6;rz=[ cos(psi) -sin(psi) 0 ; sin(psi) cos(psi) 0 ; 0 0 1] ;ry=[ cos(theta) 0 sin(theta) ; 0 1 0 ; -sin(theta) 0 cos(theta)];rx=[ 1 0 0 ; 0 cos(fi) -sin(fi); 0 sin(fi) cos(fi)];rM=ry*rx*rz; % giusta
figure;q_w=quiver3(zeros(3,1),zeros(3,1),zeros(3,1),rM*vec1,rM*vec2,rM*vec3);q_w.LineWidth=3;q_w.AutoScaleFactor=8;
Also see eul2rotm(): https://www.mathworks.com/help/releases/R2020a/robotics/ref/eul2rotm.html to generate the rotation matrix.
One way to do it:
M = {'UA' 2 'UA' 3 'US' 1 'US' 2 'US' 3 'NW' 0 'NW' 2};[Mu, ia, ic] = unique(M(:,1)); MiUS = find(strcmpi(Mu,{'US'}));MiUA = find(strcmpi(Mu,{'UA'}));MeanUS = mean(cell2mat(M(MiUS == ic,2)))MeanUA = mean(cell2mat(M(MiUA == ic,2)))produces:
MeanUS = 2MeanUA = 2.5
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