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Gantt Chart on Matlab
Use only 3d column A = [ 1 0 11 2 11 24 3 24 40 4 40 60 5 60 80]; bar(A(:,3))

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How can I add a column of data to a matrix
Try my solution A = [A b(:)]

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Symbolic Calculation to Numeric value for limit of an integral
Look at your signal t = linspace(0,100); signal = @(t) -3*(sin((t-5/2)/3)); area(t,signal(t)) axis equal It never ends! Int...

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Creating a matrix from spaced out lines of another matrix
Try this dx = max(x)-min(x); ix = round((x-min(x))/max(x)*2) + 1; % result 1 2 3 ind = cell(3,1); for i = 1:length(ind) ...

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How can I put an integral inside a for loop when the bounds depend on the loop's variable?
Here is an example for integral3 According to this integration is done from z to x You have only y. Looks like x=x(y) in yo...

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How to remove or exclude the intersecting part from two intersecting or overlaping spheres using Matlab?
Here is what i invented ix1 = (xc1-x2).^2+(yc1-y2).^2+(zc1-z2).^2 < R2^2; ix2 = (xc2-x1).^2+(yc2-y1).^2+(zc2-z1).^2 < R1^2; s...

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Using IF condition with ODE
Maybe you don't need event function for this case. I just add persistent variable to your ode function function main clear fun...

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how plot a correct interpolation with surf plot?
It happens because of different scales of data. Don't know why MATLAB get confused about it (even linear interpolation) scale...

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"dsolve" gives some extra terms in the solution
Here is comparison of solutions. See script inside

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Interpolating scattered data within a shapefile/worldmap
Here is my effort. Am i succeeded? S = importdata('CP_c.csv'); A = S.data; x = A(:,1); y = A(:,2); z = A(:,3); xx = linspa...

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How can I plot two variables with the line color varying as the third variable?
Use patch x = linspace(0,10); y = sin(x); c = jet(100); n = length(x); fv = [1:n-1;2:n]'; patch('faces',fv,'vertices',[x; ...

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Voronoi Diagram in Dashed Lines
Try to grab only handles of voronoi lines set(h(2:end),'linestyle','--')

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How to use normal, length, width, and center coordinates to create a rectangular surface in three dimensions？
Create Left vector using cross product p0 = [X Y Z]; % origin p1 = p0 + height/2*Up + width/2*left; p2 = ... % do al...

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Fill in missing NaNs
Use bwlabel A1 = isnan(A); % find NaN [L,n] = bwlabel(A1); % label each re...

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Need matlab coding for the given c program
try this i = 1; a{1} = '1'; while ~strcmp(a(i),'&') str = input('','s'); i = i + 1; a{i} = str; end

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How to pick an answer from solver for further calculations
Use logical operators ix = 0<Xi && Xi<1; x1 = Xi(ix);

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Question for color set in colorbar
Yes, there is a way. Use colormap cmap = hot(100); colormap(cmap(30:end,:)) % i use only last 70 values because first 3...

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Deleting overlapping segments between two vectors
Use bwselect cross = a.*b; ix = find(cross); % cross indices ia = bwselect(a,ix,1+ix*0); % find regions in ...

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How Can you redesign this code? Same result but different structure
You can remove some constants from for loop to speed up your code This part can be shorter and vectorized % for i=1:p % ...

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How can I plot an equation to its time lag?
Use for loops c(1) = w + (1-b)*(1+r)*a0 + D; for t = 1:n-1 c(t+1) = (1+r)*(c(t)-ch)*b + ch; end plot(1:n,c)

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Fullfile function gives me a false reading with the slash symbol
Try this Or you can remove slash symbol fileToRead(end-5) = [];

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Memory efficient vectorization of a for loop
Store values manually like sparse % preallocation? irow = []; icol = []; iplane = []; for i = 1:... % do stuff ...

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Change in velocity equation with explicit method
Here is what i think about this question for n = 2:length(t) if m(n-1) > me % if rocket has fuel dm = ...

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How do i store value in a array from for loop?
I give you simple example for a start n = 10; y = zeros(1,n); for i = 1:n-1 x = x + dx; dy = sin(x); y(i+1) = ...

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How can I plot a system of nonlinear ODEs with an added term used to model chemotherapy?
Here is an idea: function main t1 = 0.01; % start period t2 = tau-0.01; % end period hold on ...

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Create Bar Charts with different number of groups for each iteration.
Try NaN for f=1:nBFonds figure(f) Var = nan(1,26); pInd=transpose(peersInd==f); Var1 = [TotRetB(1,f);TotRet...

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Is griddedinterpolant omits NaN?
You can find out by yourself [X,Y] = meshgrid(0:10); Z = 0*X; Z(5:7,5:7) = nan; surf(X,Y,Z,'edgecolor','none') [X1,Y1] = ...

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Index in position 1 exceeds array bounds (must not exceed 1)
i am sure that indexing is right

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Produce equality matrix based on elements in vector.
Try bsxfun % make all combinations using bsxfun C = bsxfun(@minus,b(:),a(:)'); % b - rows, a - columns [i,j] = find(~C);...

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How to sum specific elements in a row of a matrix
try this A = rand(256); srow = 0; for i = 1:16:size(A,1) srow = srow + sum(A(i:i+3,:),1); end

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