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Pregunta
polar/plot incompatibility
Can any one explain the design choise that causes this: polarscatter(linspace(0,pi*2/3,100).^2,... linspace(0,pi*...
5 días hace | 1 respuesta | 0
1
respuestaHow to plot streamline of electric field from a column of data?
So you have electrical potential along a nearly straight curve. If that's all you have it becomes tricky to understand what you'...
alrededor de 2 meses hace | 0
| aceptada
Pregunta
matlabpath - order not respected?
In one of the toolboxes I have downloaded there are some functions (erf, gamma) that are shading the corresponding built-in func...
alrededor de 2 años hace | 1 respuesta | 1
1
respuestaHow to fit ODE curve using loop?
Have a look at the answers to this question: ode-with-best-fit-adjustment-to-empirical-observations monod-kinetics-and-curve-f...
más de 2 años hace | 0
Fanbeam command projection directions and attributions clarification
The way I interpret the help and documentation the vertex with the source are located at negative y for rotation-angle zero. For...
más de 2 años hace | 1
| aceptada
Error in using ode45 for solution of nonlinear system of three equations which are interlinked to each other
Perhaps you need to check the size of each component in your ode-function: f = @(t,x) [-(p1 + x(2)) * x(1) + p1 * Gb + D; -p2 *...
más de 2 años hace | 0
Image processing and contour differentiation
This seems to be a problem where you could use the file exchange submission: distance2curve. Just brute-force loop over every po...
más de 2 años hace | 0
Excluding noise from a curve
Perhaps you will have to combine a number of criteria: 1, if you have a peak for x<300 2, and is above some threshold 3, and ...
más de 2 años hace | 0
Plot contour with "concave" XY coordinates
NOTE: edited so that the code runs here and displays the results CL The problem happens because griddata (and both scatteredInt...
más de 2 años hace | 0
How to loop through a specific file in various subfolders inside a main folder?
For this I (sometimes) do this type of thing: proj_root_dir = '/full/path/to/project'; data_dirs = {'damage1_case20','damage2_...
más de 2 años hace | 1
How to define for which plane lies a given point with coordinates?
This is easiest to do with a vector-algebra approach. Something like this: 1, the plane can be described as all points such th...
más de 2 años hace | 0
| aceptada
How to define legend (or assign arrows to each plot)?
Use the output from plot. Something like this: %Analytical solution of Duffing equation %% Matlab code to find the frequency r...
más de 2 años hace | 0
How to run multiple Matlab codes one after other even if one middle code will stop due to error?
You can try something like this: n_p = 5; run_status = zeros(n_p,1); try one run_status(1) = 1; catch run_status(1)...
más de 2 años hace | 1
Solving differential equation using matlab
Do step-by-step and avoid using strings, like this: syms t real syms x(t) Dx = diff(x); D2x = diff(x,2); y = dsolve(D2x ...
más de 2 años hace | 0
How can I find the angle between two vectors that answer should be between 0 to 2*pi
This question has been answered several times: angle-betwen-two-3d-vectors-in-the-range-0-360-degree, angle-between-two-vectors...
más de 2 años hace | 0
| aceptada
Contour plot: distorted contours and blank spaces in plots.
The reason you get these jagged contour-lines is that the triangulation-based interpolation you use is based on a Delaunay-trian...
más de 2 años hace | 0
Non-pixelized image using imagesc (or alternatives)
That was not an immage you linked to but rather a movie (at a push a sequence of images). The first frame seemed reasonably simi...
más de 2 años hace | 0
changing ticks position on the graph
If you have coordinates for the edges of the cdata-elements then you can either adjust things manually to get what you want: dx...
más de 2 años hace | 0
mis match matrix dimension
As the commenters have indicated your request is to non-specific to have one solution, while we all expect you to have one speci...
más de 2 años hace | 1
| aceptada
Take the derivative of a SYMBOLIC Matrix with respect to a Vector
You might get close enough with jacobian to get the full output: syms x y real % simple 2 x 2 matrix: M = [sin(x+y) cos(x*y);...
más de 2 años hace | 1
| aceptada
Calculating the eigenvalues of simple shapes
If you have a binary image then why not just run through the svd and see what you get: I = zeros(256); I(64:(64+128),64:(64+12...
más de 2 años hace | 0
Use of ODE45 for concentration plot help
To the best of my understanding you should include all three species in the ode-function. Perhaps something like this: function...
más de 2 años hace | 0
How to describe loop for my ODE equations?
Write a function for these coupled ODEs. Inside that function you can use all the normal programmig tools and tricks you can thi...
más de 2 años hace | 0
| aceptada
Locking the Legend even if the object is deleted
If you explicitly set the axis of the plot, then you can hide objects outside the visible are and use their handles for the lege...
más de 2 años hace | 0
Neural network for curve fitting (estimating function parameters)
In any type of parameter fitting problem you're facing the curse of dimensionality in one form or the other, because the number ...
más de 2 años hace | 1
Image analysis for speckle pattern
A couple of things I'd try would be to determine the size-distribution of the speckles at different intensity-levels. This I'd d...
más de 2 años hace | 0
Multiple curve fitting via optimization
For this type of problem I would use lsqnonlin, so read the help and documentation of that function and what additinoally you ne...
casi 3 años hace | 2
| aceptada
Why cant I get a stable Cranck Nicolson discretization?
(caveat: I didn't run your code or analyze it, but speak from my experience with CN) Most likely you take too long steps in time...
casi 3 años hace | 0
Passing a matrix between several callbacks
If you have all your user interface in one figure (some calculator-like programme), then one way to store the matrix is in the '...
casi 3 años hace | 0
Joint Probability Density estimation function
Search the excellent File Exchange for everything you need but cannot find in your matlab-installation! Here's what comes up wh...
casi 3 años hace | 0
