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**Feeds**

logical operation on a varable x

Is this what you are looking for? for j = 1:20 if j==1 || j==20, continue; end your_code_goes_here end This...

ongeveer 9 jaar ago | 0

How to plot 4D graph ?

You can use scatter3. To that end, you can create a matrix containing in each row the coordinates of each point and the value of...

ongeveer 9 jaar ago | 0

Plotting 4D with 3 vectors and 1 matrix

You could use "patch" since the surface will hide the interior points. You can create a matrix containing the coordinates of eac...

ongeveer 9 jaar ago | 0

Simultaneously inverting many matrices

In my experience, using cells is rather slow. Since your matrices are 2x2, then you could simple arrange them in a 3D array, wit...

ongeveer 9 jaar ago | 1

How to solve system of nonlinear equations (A-x1)*x2=B?

Notice that (A-x)*y=B (I changed the names of the variables for simplicity) can be written component-wise as (Ai-xi)*yj = Bij, w...

ongeveer 9 jaar ago | 0

How can I calculate very large matrix and store the values?

I guess one option would be to reduce the size of your data using clustering such as K-means or Gaussian mixtures, and replace a...

meer dan 9 jaar ago | 0

int8(3) vs int(3)

At least in Matlab 2015, the function "int" is related to filters (in the filtstates package) or integration (in the symbolic pa...

meer dan 9 jaar ago | 2

| accepted

Unexpected phase displacement in FFT of a pure sinewave.

Hi Alberto, I think your problem is due to your choice of t. Suppose that your frequency is 50Hz. If you choose t=0:.00...

meer dan 9 jaar ago | 0

| accepted

Submitted

zoom_wheel(hfig,options)

Zoom in and out using the wheel in a rather practical manner

meer dan 9 jaar ago | 1 download |

how can I draw a line knowing just the midpoint and the angle?

You can do this midpoint=[a,b]; % This defines the midpoint. You should give a and b some value. lineangle=c; % This defines...

meer dan 9 jaar ago | 0

| accepted

Solving an Equation using Newton-Raphson Method

Are the functions polynomials as the example you mentioned? If they are, assume that the order of the polynomial is N (in you...

meer dan 9 jaar ago | 0

How to impove the performence of this code?

As far as I can see, there is a problem in the code. Wheneven the condition strcmp(alldata(i,1),alldatafel(j,1)) && strcmp(...

bijna 10 jaar ago | 1

plot two figures with same colorscale

If I understood correctly, you want the colour to vary according to the value of "z". But the problem is that plot3 takes only o...

bijna 10 jaar ago | 0

How do I write a function with multiple out puts and inputs with varying times?

The problem is in the equation. The constant for the charge of the capacitor is R*C. Therefore, instead of writing Vc = V*(1-...

bijna 10 jaar ago | 0

| accepted

How to change the color of a specific sub-bar in a 2-D bar graph

You can do that by plotting each bar separately. For example, suppose that data is a matrix of 31 x 3 and that the colors for th...

ongeveer 10 jaar ago | 1

| accepted

Taking the mean of rows in a structure array

You can do the following: nmfinal=mean(cell2mat(squeeze(struct2cell(nm.data))'))'; You might need to take some precautio...

ongeveer 10 jaar ago | 0

How to check if a 3d matrix has any 2D submatrix with non zero elements?

You can just do [any(any(a(:,:,1)>0)),any(any(a(:,:,2)>0))] or just shorter nonzero2D=@(a,k)any(any(a(:,:,k)>0)) ...

meer dan 10 jaar ago | 0

Extracting data from lines in a plot

Just in case, you could also provide a contextual menu by doing the following hmenu=uicontextmenu; uimenu(hmenu,'Label','M...

meer dan 10 jaar ago | 0

Extracting data from lines in a plot

Have you tried using the command text()? Suppose that the tip of one of the lines is in (a,b). Then you can just do text(a,b...

meer dan 10 jaar ago | 0

How to compare two signal

The comparison can be done in several different ways. Suppose that X is the original signal and that XR is its reconstruction. Y...

meer dan 10 jaar ago | 1

| accepted

Plot a 3d-plane in MATLAB??

This solution is based on patch y=-2:.01:2; z=4-y.^2; numy=length(y); % Constructing the vertices V=zeros(numy,3)...

meer dan 10 jaar ago | 0

| accepted

Making a Square Wave Gradually

Each section is being played for one second because you are setting that in the line y(1 + timeDomain + (((k+1)/2)-1)*fs) = ...

meer dan 10 jaar ago | 0

| accepted

multi-variable looping problem

for a=1000:100:20000 ia=floor(a/100)-9; for b=100:10:200 ib=floor(b/10)-9; for c=.2:.01:.3 ic...

meer dan 10 jaar ago | 0

| accepted

How to find inverse of a self written function?

You can do the following sqrtllrh=fminsearch(@(sqrtllr)(cdf_func(sqrtllr.^)-h)^2,1); llrh=sqrtllrh^2; The explanation...

meer dan 10 jaar ago | 0

Create plot with orthonormal axis

Maybe you can solve this by setting the axes property 'DataAspectRatio' to a specific value. For example: set(gca,'DataAspe...

meer dan 10 jaar ago | 1

| accepted

Submitted

3D Gaussian ellipses constant probability curves

Construct data points of ellipsoids depicting contour curves of 3-dimensional Gaussian distributions

meer dan 10 jaar ago | 2 downloads |

Submitted

Gaussian ellipses constant probability curves

Construct data points of ellipses representing contour curves of bivariate Gaussian distributions.

meer dan 10 jaar ago | 4 downloads |

Labels on the contour have too many digits

You could use [C,h]=contour(...); texth=clabel(C,h); texth is a vector that contains the handles of all labels. To ge...

ongeveer 11 jaar ago | 0

Help needed on plotting!

When you push the GUI pushbutton, you can read the labels of the columns of the data into a cell array and then create the check...

ongeveer 11 jaar ago | 0

More sophisticated code than a for loop with i is large

Please notice that in the "scatter matrix" that you showed as an example there are elements that are repeated, and the structure...

ongeveer 11 jaar ago | 0