Respondida
Create a cell array containing the first 3 doubles from another cell array
Would: ThreeFirst = cell2mat(CCC(1:3)); do the trick?

más de 3 años hace | 1

Respondida
Finding Maximum Consecutive Dry Days in Daily Rainfall Data
Don't do it with loops, that is a lot of work. Use the vectorized functions to your advantage. Here's how to get at it with usin...

más de 3 años hace | 0

| aceptada

Respondida
How to make 2D matrix from 3D matrix to solve 2D nonlinear system?
For the interior of your grid you can rather easily calculate the Laplacian operator something like this: NperSide = 50; [x,y,...

más de 3 años hace | 0

| aceptada

Respondida
operating Matlab via Ubuntu terminal
It should be possible to do things like this from any standard unix-terminal: $ matlab -nodesktop -nosplash -r YOUR-SCRIPT You...

más de 3 años hace | 0

Respondida
Value dash outside a 2D plot
You can do this: set(gca,'TickDir','out') HTH

más de 3 años hace | 0

Respondida
Creating a graph with error bars
You can use the errorbar function for plots like this. Check the help and documentation for that function. If that function does...

más de 3 años hace | 0

Respondida
How to extract values within a circular region from a griddata?
You "simply" only ask for the values inside that circular region. You can do it at least two different ways: N = 100; xv = lin...

más de 3 años hace | 0

| aceptada

Respondida
2 equations, 2 unknowns - fminsearch(), fminunc() applied on numerical data
From your description you have 800-by-1300 linear equations of the type: a + x = b + y and you want to solve for both x and y....

más de 3 años hace | 0

| aceptada

Respondida
Local variance estimation for image filtering
You get that result because medfilt2 will select the median value of the pixel-intensities of your region, and completely discar...

más de 3 años hace | 0

| aceptada

Respondida
How to read the coordinated from the plot in MATLAB 2018 version?
If you make a simple graph: ph = plot(X,Y); Then you can always extract the data-points from the plot-handle ph: xGraph = get...

más de 3 años hace | 0

Respondida
How to calculate the L2 (Euclidean) and L1 (cityblock, or we say Manhattan distance) distance based on longitude and latitude?
It seems to me that there is no obvious good definition of a Manhattan-distance on a spherical surface (even less so on a geoid)...

más de 3 años hace | 0

| aceptada

Respondida
Colorbars belonging to more than one subplot/axis
perhaps something like this: figure(1) cx_12 = [min(min(var1(:)),min(var2(:))),max(max(var1(:)),max(var2(:)))]; cx_34 = [min(...

más de 3 años hace | 0

| aceptada

Respondida
Processing large matrix faster
This ought to be done in one go: coods = M(:,M(:,3)<-80); In the case you cannot do it in a vectorized way and cannot determ...

más de 3 años hace | 0

Respondida
From char to double for plotting
First you should store the data-sets in some kind of array. For the most tolerant storage (that doesn't care about different dim...

más de 3 años hace | 1

| aceptada

Respondida
Find 2D intersection in lat lon between curve (rivers) and satellite traces (2D polygon) on a map
If you have a single-pass of the satellite you could check what "river-points" are inside the ground-track with the inpolygon fu...

más de 3 años hace | 0

Respondida
Is there a way in MATLAB to guess the values of a matrix just like in the EES software?
You can easily initialize your variable to a fixed-valued array: a = 17; t = 16.05*ones([1,round(a)]); If you want a function...

más de 3 años hace | 0

Respondida
Mass of a wire in shape of helix
The symbolic tools make the default interpretation that all variables are complex. Therefore it cannot make that simplification....

más de 3 años hace | 0

Respondida
Diagnose Infeasibility of Simple 3-DoF Trajectory Optimization
Why not write the equation of motion component-by-component instead: function dydtd2ydt2 = dfu(~,y) g = 9.81; dydtd2ydt2 = ze...

más de 3 años hace | 0

Respondida
Create a surface with separate contours from other plots
Just concatenate all your n-by-3 data into a large many-by-3 array and then check up the help and documentation of scatteredInte...

más de 3 años hace | 0

| aceptada

Respondida
How can I find rank of matrix?
First use pen (pencil) and paper to rewrite your equations into a normal matrix-form: Where M is a 4-by-4 matrix x is an arra...

más de 3 años hace | 1

Respondida
how to solve 3dof point mass equations of motion of flight vehicle
A three-degrees-of-freedom dynamic system in three spatial coordinates doesn't have yaw and pitch degrees of freedom. It is effe...

más de 3 años hace | 1

Respondida
Finding intersection between two 3D lines
You can do this rather automatic with geometry and linear algebra if you write your the positions and along lines as: If a...

más de 3 años hace | 0

Respondida
How to create mono phasic square waves with certain amplitude, pulse width and frequency for a certain time period
you could use square - for details check the help and documentation of that function. HTH.

más de 3 años hace | 0

| aceptada

Respondida
Full surface from scatter by griddata!!!
This is "just" a pixellation-problem. You can see how it comes about by varying the resolution of your grid: [xq,yq] = meshgrid...

más de 3 años hace | 1

| aceptada

Respondida
How to convert long to scientific e format in plots legend?
You could be a bit more explicit in the call to legend: txt = ['lambda = ',num2str(lambda(check))]; ph = plot(1:100, abs(Arec(...

más de 3 años hace | 0

Respondida
how to make polar plot with N x M matrix
You can have a look at these file-exchange contributions: pcolor-in-polar-coordinates, perfect-polar-plots, 3d-polar-plot. Or y...

más de 3 años hace | 0

| aceptada

Respondida
Mutiple colorbars for mutiple scatter plots in the same figure
Have a look at the file exchange contribution newcolorbar-multiple-colormaps-in-the-same-axes. It seems as it should let you do ...

más de 3 años hace | 0

Respondida
How to change the colours of bars in a histogram with multiple data
If you take the output from hist and plot that with bar, you can do something like this: [phH1,phH2] = hist([re_low' re_high'],...

más de 3 años hace | 0

| aceptada

Respondida
Three nonlinear equation with initial guess
Have a look at the help and documentation of fsolve. That should be the function for this task HTH

más de 3 años hace | 0

Respondida
Spectral Resampling from hyperspectral to multispectral
If you have a hyper-spectral image, I_hs, on the format [n_y x n_x x n_lambda] and you want to reduce the number of wavelength-c...

más de 3 años hace | 0