Answered

Hello, we have received a Matlab code in school and the assignment is to explain what it means. I wonder if anybody could take us through the code and explain it?

At the matlab command-line prompt type: dpstop in nameiofscript where nameiofscript is the name of the script-file. Then you r...

Hello, we have received a Matlab code in school and the assignment is to explain what it means. I wonder if anybody could take us through the code and explain it?

At the matlab command-line prompt type: dpstop in nameiofscript where nameiofscript is the name of the script-file. Then you r...

6 days ago | 0

Answered

How to obtain CDF from large dataset?

Have a look at the help and documentation of the function ksdensity - that is one way to do this with the least amount of assump...

How to obtain CDF from large dataset?

Have a look at the help and documentation of the function ksdensity - that is one way to do this with the least amount of assump...

6 days ago | 0

Answered

Difference in frequency domain between mp3 and wav

There are some small differences. You should also try to compare the spectrograms of the two signals, see the help for spectrogr...

Difference in frequency domain between mp3 and wav

There are some small differences. You should also try to compare the spectrograms of the two signals, see the help for spectrogr...

8 days ago | 0

Answered

How to edit matlab saved file?

I think something like this should work: filename2edit = 'something.mat'; load(filename2edit,'X2change') X2change(3) = 12; s...

How to edit matlab saved file?

I think something like this should work: filename2edit = 'something.mat'; load(filename2edit,'X2change') X2change(3) = 12; s...

9 days ago | 0

Answered

I would like to plot Histogram and relative frequencies from a given dada.txt. I already plot time series plot for the given data. KIndly help me to plot histogram and relative freqs.

Have a good look at the help and documentation of histogram function. It should let you solve this task easily. HTH

I would like to plot Histogram and relative frequencies from a given dada.txt. I already plot time series plot for the given data. KIndly help me to plot histogram and relative freqs.

Have a good look at the help and documentation of histogram function. It should let you solve this task easily. HTH

11 days ago | 0

Answered

Solving 4th order ode problem

In general you convert a high-order ODE to a set of first order ODEs like in this example below (I will use a simple equation of...

Solving 4th order ode problem

In general you convert a high-order ODE to a set of first order ODEs like in this example below (I will use a simple equation of...

12 days ago | 0

Answered

partial differentating a matrix by a vector

Have a look at the help and documentation for jacobian. HTH

partial differentating a matrix by a vector

Have a look at the help and documentation for jacobian. HTH

14 days ago | 0

| accepted

Answered

Is it possible to plot a 3D graph with non numerical values?

The simplest method might be to map your classes to some integer range and then use the standard plotting functions. In your cas...

Is it possible to plot a 3D graph with non numerical values?

The simplest method might be to map your classes to some integer range and then use the standard plotting functions. In your cas...

15 days ago | 0

Answered

How to display figure in full-screen mode programmatically and save as a high resolution image?

To save as high-resolution, I regularly use: print('-depsc2','-painters','J.eps') If you desperately want the image as a png-i...

How to display figure in full-screen mode programmatically and save as a high resolution image?

To save as high-resolution, I regularly use: print('-depsc2','-painters','J.eps') If you desperately want the image as a png-i...

16 days ago | 1

Answered

How to store 2D variables in matrix

For the storing the point coordinates you might look at either cell-arrays: r1 = [1,2,3]; r2 = [3,2,5]; r3 = [4.5,pi,1,5]; %...

How to store 2D variables in matrix

For the storing the point coordinates you might look at either cell-arrays: r1 = [1,2,3]; r2 = [3,2,5]; r3 = [4.5,pi,1,5]; %...

17 days ago | 0

Answered

Problem getting number of ticks and labels to work properly

Do you get your xticks at the even years with the xticklabels for the first 6 years? You can at least check the x-tick values w...

Problem getting number of ticks and labels to work properly

Do you get your xticks at the even years with the xticklabels for the first 6 years? You can at least check the x-tick values w...

19 days ago | 0

Answered

De-resolution of Dicom Image

So you problem is that you cannot figure out how to save a file to a new same-name file in another directory? If so something l...

De-resolution of Dicom Image

So you problem is that you cannot figure out how to save a file to a new same-name file in another directory? If so something l...

19 days ago | 0

Answered

A switch case statement that will help me to either run codeS in Windows or linux, based on whichever OS it is

Have a look at the commands: computer, ispc, insunix, ismac. HTH

A switch case statement that will help me to either run codeS in Windows or linux, based on whichever OS it is

Have a look at the commands: computer, ispc, insunix, ismac. HTH

20 days ago | 0

Answered

zoom plot into plot

Maybe this file exchange contribution does what you need: zoomplot Or any of these: on-figure-magnifier, maginset, interactiv...

zoom plot into plot

Maybe this file exchange contribution does what you need: zoomplot Or any of these: on-figure-magnifier, maginset, interactiv...

21 days ago | 0

Answered

How to find angle between two lines?

A more stable method that what Jos suggested is v_1 = [x2,y2,0] - [x1,y1,0]; v_2 = [x3,y3,0] - [x1,y1,0]; Theta = atan2(norm(...

How to find angle between two lines?

A more stable method that what Jos suggested is v_1 = [x2,y2,0] - [x1,y1,0]; v_2 = [x3,y3,0] - [x1,y1,0]; Theta = atan2(norm(...

23 days ago | 1

| accepted

Answered

Integrating function of t over numerical values

Yes, that means that the function you call integral with is called with an array of values - therefore your function (the long e...

Integrating function of t over numerical values

Yes, that means that the function you call integral with is called with an array of values - therefore your function (the long e...

23 days ago | 0

| accepted

Answered

Multiple color plots / colorbars on a single axes

There are some contributions on the file exchange that deals with this. I thik this is one: colormat-and-colorbar-utilities You...

Multiple color plots / colorbars on a single axes

There are some contributions on the file exchange that deals with this. I thik this is one: colormat-and-colorbar-utilities You...

26 days ago | 0

| accepted

Answered

Given 2 red beads, 2 blue beads, 1 yellow bead, and 1 green bead, how many different necklaces can be made?

Why not just remove the non-unique necklaces? See the help and documentation for unique for how to do this. HTH

Given 2 red beads, 2 blue beads, 1 yellow bead, and 1 green bead, how many different necklaces can be made?

Why not just remove the non-unique necklaces? See the help and documentation for unique for how to do this. HTH

26 days ago | 0

Answered

stream lines for discrete data set of velocities

Your question is a bit too vague. Or rather, the input-data you have is a bit vaguely described. The answer depends on how you'l...

stream lines for discrete data set of velocities

Your question is a bit too vague. Or rather, the input-data you have is a bit vaguely described. The answer depends on how you'l...

26 days ago | 0

| accepted

Answered

Is there a way to Un-clip a sine wave?

You can do something like this: sfcn = @(t,pars) pars(1)+pars(2)*sin(pars(3)*t+pars(end)); % sine-like function with offset and...

Is there a way to Un-clip a sine wave?

You can do something like this: sfcn = @(t,pars) pars(1)+pars(2)*sin(pars(3)*t+pars(end)); % sine-like function with offset and...

26 days ago | 0

| accepted

Answered

Plotting graph with variables on x axis

Something like this: y = randn(123,1); x = linspace(0,1,123); plot(x,y) xtstr = {'0','0.2d','0.4d','0.6d','0.8d','1d'}; set...

Plotting graph with variables on x axis

Something like this: y = randn(123,1); x = linspace(0,1,123); plot(x,y) xtstr = {'0','0.2d','0.4d','0.6d','0.8d','1d'}; set...

27 days ago | 0

| accepted

Answered

Dynamic model of a bending spring

Start reading up on the topic of beam-theory. Then come back with matlab or ODE/PDE-based questions which are more suitable for ...

Dynamic model of a bending spring

Start reading up on the topic of beam-theory. Then come back with matlab or ODE/PDE-based questions which are more suitable for ...

27 days ago | 0

Answered

How to assign to an already 3d surface a colormap based on a set of values ?

This is how I'd do this: surf(x,y,z,Temps),shading flat This you dont have to view from above. HTH

How to assign to an already 3d surface a colormap based on a set of values ?

This is how I'd do this: surf(x,y,z,Temps),shading flat This you dont have to view from above. HTH

27 days ago | 0

Answered

i want to fill zeros inbetween vector elements

Looks like you should turn to matlab's sparse arrays. Something like this should be a shortest-ish code-snippet to do what you n...

i want to fill zeros inbetween vector elements

Looks like you should turn to matlab's sparse arrays. Something like this should be a shortest-ish code-snippet to do what you n...

28 days ago | 0

Answered

Coherence as a function of time

Have a look at mscohere, and its help and documentation. It should allow you to calculate the coherence. My version resides in t...

Coherence as a function of time

Have a look at mscohere, and its help and documentation. It should allow you to calculate the coherence. My version resides in t...

28 days ago | 0

Answered

Using spectralFlux to plot Flux of a vector

It is not at all clear what you want to do, spectral flux is not a term I've heard before - this might be because I'm ignorant, ...

Using spectralFlux to plot Flux of a vector

It is not at all clear what you want to do, spectral flux is not a term I've heard before - this might be because I'm ignorant, ...

28 days ago | 0

Answered

matrix contain index track

Sure: I = [1, 3, 1, 4; 2, 3, 2, 4]; % Then operate away... But it is very unclear if that is what you really want. Do...

matrix contain index track

Sure: I = [1, 3, 1, 4; 2, 3, 2, 4]; % Then operate away... But it is very unclear if that is what you really want. Do...

1 month ago | 0

Answered

Problems with waitbar sizing

Have a look at this command-line progress-bar version. It is less visually intrusive when working with other stuff while matlab ...

Problems with waitbar sizing

Have a look at this command-line progress-bar version. It is less visually intrusive when working with other stuff while matlab ...

1 month ago | 0

Answered

Histogram with circular bars

I would do something like this: edges = 0:15:360; N_all(1,:) = histcounts(M1,edges);% Put one histogram per row into N_all N_...

Histogram with circular bars

I would do something like this: edges = 0:15:360; N_all(1,:) = histcounts(M1,edges);% Put one histogram per row into N_all N_...

1 month ago | 0