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Surface Plots of 3D Matrix After sum.
Try B = sum(A); surf(squeeze(B))

más de 6 años hace | 1

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How to solve Error using griddedInterpolant The grid vectors are not strictly monotonic increasing?
Error using griddedInterpolant The grid vectors are not strictly monotonic increasing. Maybe it's because of lat? It's decreas...

más de 6 años hace | 0

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Convert x,y,z data to surface matrices(2D array)
Make new mesh in spherical V = p.vertices; for i = 1:3 V(:,i) = V(:,i)-mean(V(:,i)); % move to origin end %...

más de 6 años hace | 0

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Find knee/elbow of a curve
What about imdilate()? clc,clear I = imread('nett.jpg'); I1 = im2bw(I); I2 = imdilate(I1,ones(20)); Z = 1.0*cat(3,I1,I2...

más de 6 años hace | 0

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Find cycles in an undirected graph
Just use for loop and cells since you already know indices of each polygon s = [1 1 1 2 3 3 4 4 5 6 6 6 8 9 10 10 12 12 13 14 1...

más de 6 años hace | 2

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Fill a matrix after an iteration
Maybe TM = (sum(TMR)>6) .* sum(TMR);

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3D Plotting in MATLAB
Use plot3() % Voltage 9 x9 = [ 19 20 21 21 21 21 20 20 20 20 18 ]; y9 = [ 0 10 30 50 70 90 110 120 140 160...

más de 6 años hace | 0

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How to create a new array with variables that did not meet the required parameters.
Try cond = DwellTime>=2 & DwellTime<=2.5; [cond.*DwellTime ~cond.*DwellTime]

más de 6 años hace | 0

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Do not understand Curve intersections code
Intersections just loops through all segments of curves and find all intersections Many of segments have intersections, but i...

más de 6 años hace | 0

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sfit data array output
This code A = xlsread('ASTMG173.xls'); x = A(:,1); y = A(:,3); plot(x,y) Produces Is it the curve you want to approximat...

más de 6 años hace | 0

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Prompt the user to enter a vector of coefficients for the polynomial model. Verify that the entry has an even number of elements (an odd number of elements would mean an even order polynomial). If an invalid vector is entered, prompt the user to re-e
Use mod() function a = mod(b,a); % a=1 if b is odd

más de 6 años hace | 0

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Can this for-loop code get faster in some way?
Maybe ismember function can be replaced: dt = 60000; period_interval = 0 : dt : ts_length; n = length(period_interval); for...

más de 6 años hace | 1

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Solving system of nonlinear equation with boundary condition
Use isosurface to visualize roots Use if .. else statement to choose parameter if P > -c^2 T = P; elseif -c^2 < Q && Q ...

más de 6 años hace | 0

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Coupled differential equations kinetic
yprime and y are always connected function [ yprime ] = calibration( t,y,par,par_cali,T,x1,O2) Your input y were in wrong orde...

más de 6 años hace | 1

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Solution to ODE in matlab or simulink
I tried to solve this equation first What are constants values? % opengl software G = 2; V = 2.4; Q = 5; J = 1; n0 = 1....

más de 6 años hace | 1

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Trigonometric approximation on symbolic variables
subs works ok for me syms x y Tp Tw eqn{1} = cos(x) + sin(y) - Tp; eqn{2} = 1 + x + sin(x) - Tw; for i = 1:2 eqn{i}...

más de 6 años hace | 0

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Curve fitting function not able to reproduce curve accurately
How it's supposed to be 'Accurately' if you change output data %% some input Data id_cont = [-800,-799,-798,-797,-796,-795,-79...

más de 6 años hace | 0

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Plotting pcolor plot on an image at a particular area.
You can just merge images clc,clear load matlab.mat [m,n] = size(img); [X,Y] = ndgrid(1:m,1:n); Z = (X.*Y).*region; ...

más de 6 años hace | 0

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plot3 is showing axes but not vectors
First of all use these parenthesis to access an element: vector_e(1) MATLAB is MATrix LABoratory. Take an advantage of it % n...

más de 6 años hace | 0

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Which line is the first line that has an intersection with another line? or what is the order of the intersectection points?
Use third output argument of polyxpoly [xc,yc,ix] = polyxpoly(x,y,xd,yd) % ix(:,1) - number of intersected segment in [x,y] da...

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Area fill between minimum and maximum axis limit
Use patch()

más de 6 años hace | 1

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Plot legend does not display any lines
Please see THIS solution for colorbar error

más de 6 años hace | 2

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How does this Euler's Method for first ODE work?
Here are some basic concepts 1 - function [x,y] = Euler(h, x0, y0, interval_length, func) % h - step in X direction (dx) % x...

más de 6 años hace | 0

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How can I solve a system of ODEs having coefficients in vector form using bvp4c ?
Try this function eqns = odes(x,y,e,x0) global Pr phi Ra Da Fr A1 A2 fdesh fdeshdesh thetadesh; % global variables are...

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Rotating values within a meshgrid
So maybe rotate your data and apply griddata() again a = 45; R = [cosd(a) sind(a); -sind(a) cosd(a)]; V = R*[x(:) y(:)]'; xn...

más de 6 años hace | 0

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For Loop calculating too slowly
Maybe try [S,M,H] = ndgrid(0:60, 0:60, 0:24); data1 = repmat([2019 9 30],[length(S(:)) 1]); data2 = [H(:) M(:) S(:)]; data =...

más de 6 años hace | 0

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4d plotting with slices
slice() just doesn't use last column and row for displaying colors So i just copied values [X,Y,Z] = meshgrid(0:4, 0:5, 0:4); ...

más de 6 años hace | 0

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Why doesn't my blue point move towards my red point?
your initial D_VT (86.02) bigger than D (3.0) while D_VT < D % shoudl be: D_VT > D In your loop you clear previous ...

más de 6 años hace | 0

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Fill line with colors using the heatmap
What about pcolor() clc,clear n = 50; x = linspace(-5,5,n); [X,Y] = meshgrid(x); for i = 1:n y = sinc(x(i))+0.5; ...

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solving 4th order ode
Use bvp4c() You already have written your equation as system of first-order equations function dydt = ode4(t,y) L=1;B=0.2...

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