Answered

How can i plot three periods of a signal

If you want to plot three periods of a signal and do it by extracting the data from your existing code, then t=[0:0.0002:20]; ...

How can i plot three periods of a signal

If you want to plot three periods of a signal and do it by extracting the data from your existing code, then t=[0:0.0002:20]; ...

29 minutes ago | 0

Answered

How do i get the sound of a cosine signal

You've only got 100 sample points and the sampling rate is too low. Try this... t=[0:0.2:2000]; xc1=cos(2*pi*493.88*t); soun...

How do i get the sound of a cosine signal

You've only got 100 sample points and the sampling rate is too low. Try this... t=[0:0.2:2000]; xc1=cos(2*pi*493.88*t); soun...

environ 14 heures ago | 1

| accepted

Answered

How to take mean of integers value?

You need to use braces because your data are in a table: mean(LSinclination{:,5}) If it's just the integer values you want the...

How to take mean of integers value?

You need to use braces because your data are in a table: mean(LSinclination{:,5}) If it's just the integer values you want the...

environ 24 heures ago | 1

Answered

3D Plot from Excel data

OK, let's work with plot3. The relationships in the data might not be a suited to plot3, but this is a reasonable start. It's ...

3D Plot from Excel data

OK, let's work with plot3. The relationships in the data might not be a suited to plot3, but this is a reasonable start. It's ...

2 jours ago | 1

Answered

Stacked bar plot, assign "names" to color

Just add labels to your legend: labels = { 'Jack', 'Fred', 'abc', 'def' }; % fill out, as desired legend(labels);

Stacked bar plot, assign "names" to color

Just add labels to your legend: labels = { 'Jack', 'Fred', 'abc', 'def' }; % fill out, as desired legend(labels);

3 jours ago | 0

Answered

How to get all data from m-function?

Your function is defined to only return A (which is perhaps a scalar). To return multiples values, return them as elements in a...

How to get all data from m-function?

Your function is defined to only return A (which is perhaps a scalar). To return multiples values, return them as elements in a...

3 jours ago | 0

Answered

subtract value from column in table

You need to use braces: Scan{:,c} = (Scan{:,c}-minus);

subtract value from column in table

You need to use braces: Scan{:,c} = (Scan{:,c}-minus);

3 jours ago | 0

| accepted

Answered

Noisy plot after deviation (no sensor)

@Bruce Rogers I added some filtering using MATLAB's smoothdata function. The result is a pretty good sine wave both for velocit...

Noisy plot after deviation (no sensor)

@Bruce Rogers I added some filtering using MATLAB's smoothdata function. The result is a pretty good sine wave both for velocit...

3 jours ago | 0

Answered

correct use of randsrc function

There are lots of ways to do this, I suppose. Here's what I put together -- with a pesky twist. The weighting is built-in to t...

correct use of randsrc function

There are lots of ways to do this, I suppose. Here's what I put together -- with a pesky twist. The weighting is built-in to t...

3 jours ago | 1

Answered

How to find the zero crossing in x and time data sets?

Here's what I put together. The variable fCross is what you are looking for. % data from posted matlab.mat files f = readmatr...

How to find the zero crossing in x and time data sets?

Here's what I put together. The variable fCross is what you are looking for. % data from posted matlab.mat files f = readmatr...

4 jours ago | 2

| accepted

Answered

Plotting an amplitude spectrum of a .txt file

This seems to work... % load seismic signal data ss = readmatrix('https://www.mathworks.com/matlabcentral/answers/uploaded_fi...

Plotting an amplitude spectrum of a .txt file

This seems to work... % load seismic signal data ss = readmatrix('https://www.mathworks.com/matlabcentral/answers/uploaded_fi...

4 jours ago | 1

Answered

Making two 3D vectors the same length

Given that your question is... How do I pad vector static with zeros at the end so that both vectors are the same dimension?...

Making two 3D vectors the same length

Given that your question is... How do I pad vector static with zeros at the end so that both vectors are the same dimension?...

4 jours ago | 1

| accepted

Answered

the colors red, blue, yellow repeated again in my plot, how I can give each curve in the plot different color

One way is to specify a different color in each call to the plot function: K=1:30; for i=1:10 C_T=i*log(K); plot_T =...

the colors red, blue, yellow repeated again in my plot, how I can give each curve in the plot different color

One way is to specify a different color in each call to the plot function: K=1:30; for i=1:10 C_T=i*log(K); plot_T =...

4 jours ago | 0

| accepted

Answered

How to create several figures in a subplot with different axes

You're aren't using subplot correctly. For each plot you need a separate call to subplot with the index (in your case, row) whe...

How to create several figures in a subplot with different axes

You're aren't using subplot correctly. For each plot you need a separate call to subplot with the index (in your case, row) whe...

4 jours ago | 0

Answered

Accessing multiple columns in cell array

You need to retrieve the elements in their underlying data type (hence the use of braces) and concatenate the values using brack...

Accessing multiple columns in cell array

You need to retrieve the elements in their underlying data type (hence the use of braces) and concatenate the values using brack...

4 jours ago | 0

Answered

How to store data whose dimension varies at each steps of run?

This is a bit long-winded (and can surely be shortened), but I think it achieves what you are looking for: N = 8; % iterations ...

How to store data whose dimension varies at each steps of run?

This is a bit long-winded (and can surely be shortened), but I think it achieves what you are looking for: N = 8; % iterations ...

4 jours ago | 1

| accepted

Answered

Find a 4-point polygon enclosing scattered points

No doubt this can be simplified, but I think it meets your objective of finding the vertices (4) enclosing the points: % create...

Find a 4-point polygon enclosing scattered points

No doubt this can be simplified, but I think it meets your objective of finding the vertices (4) enclosing the points: % create...

5 jours ago | 1

| accepted

Answered

Don't want box plots to overlap...

You only need to use the boxplot function once. Combine the data in a matrix. You'll get a box plot for each column of data an...

Don't want box plots to overlap...

You only need to use the boxplot function once. Combine the data in a matrix. You'll get a box plot for each column of data an...

5 jours ago | 0

| accepted

Answered

Find the indices of the imaginary element of the matrix

% test matrix A=[1 2 3; 4+i 5 6-i; 7 8+i 9] % identify imaginary elements in A (+1 or -1) B = imag(A)...

Find the indices of the imaginary element of the matrix

% test matrix A=[1 2 3; 4+i 5 6-i; 7 8+i 9] % identify imaginary elements in A (+1 or -1) B = imag(A)...

5 jours ago | 0

Answered

3D surface plot from 3 columns of excel data?

Here you go... T = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/645855/P3%20data.xlsx'); x = T{:,...

3D surface plot from 3 columns of excel data?

Here you go... T = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/645855/P3%20data.xlsx'); x = T{:,...

5 jours ago | 0

| accepted

Answered

Create new matrix containing only subset of values from old matrix

For the matrix multiplication, use squeeze so both matricies are 24x24, then assign the result to the corresponding 1st dimensio...

Create new matrix containing only subset of values from old matrix

For the matrix multiplication, use squeeze so both matricies are 24x24, then assign the result to the corresponding 1st dimensio...

5 jours ago | 1

| accepted

Answered

Average over particular ranges of one dimension in matrix

% test data data = rand(22,40,24,24); % make the 2nd dimension the 1st dimension d1 = permute(data,[2 1 3 4]); % compute...

Average over particular ranges of one dimension in matrix

% test data data = rand(22,40,24,24); % make the 2nd dimension the 1st dimension d1 = permute(data,[2 1 3 4]); % compute...

6 jours ago | 0

Answered

How to place percent of each bar/bin of histogram on histogram chart in the code below?

Instead of histogram, I suggest you use histcounts along with bar: % test data data = rand(1,1000); hc = histcounts(data); ...

How to place percent of each bar/bin of histogram on histogram chart in the code below?

Instead of histogram, I suggest you use histcounts along with bar: % test data data = rand(1,1000); hc = histcounts(data); ...

7 jours ago | 1

| accepted

Answered

How to do a 2D surface pot as excel graph XY plane isoSAR?

f = figure; f.Color = 'w'; f.Units = 'normalized'; f.Position = [.1 .2 .8 .5]; M1 = readmatrix('https://www.mathworks.com/...

How to do a 2D surface pot as excel graph XY plane isoSAR?

f = figure; f.Color = 'w'; f.Units = 'normalized'; f.Position = [.1 .2 .8 .5]; M1 = readmatrix('https://www.mathworks.com/...

7 jours ago | 0

Answered

Change GridSize of existing non empty TiledChartLayout object

Try using flow for the grid size... tiledlayout('flow'); nexttile; plot([1 2 3],[4 5 6],'-ob'); pause(2); nexttile; pl...

Change GridSize of existing non empty TiledChartLayout object

Try using flow for the grid size... tiledlayout('flow'); nexttile; plot([1 2 3],[4 5 6],'-ob'); pause(2); nexttile; pl...

7 jours ago | 0

Answered

how can I save my error term in an array within while loop?

I haven't examined your code in any detail. However, if I understand your question correctly, you simply want to save all the e...

how can I save my error term in an array within while loop?

I haven't examined your code in any detail. However, if I understand your question correctly, you simply want to save all the e...

7 jours ago | 0

Answered

I need to fits the attached data as in image

Here's what I put together. This is only for the T5-L5 data. You can repeat this for the rest of the data and build up the plo...

I need to fits the attached data as in image

Here's what I put together. This is only for the T5-L5 data. You can repeat this for the rest of the data and build up the plo...

7 jours ago | 0

Answered

What is the matter with this nested looped?

Most likely the problem is with this line for x=n:1 if n > 1, the loop does not execute. Did you mean for x=1:n

What is the matter with this nested looped?

Most likely the problem is with this line for x=n:1 if n > 1, the loop does not execute. Did you mean for x=1:n

8 jours ago | 0

Answered

Random sample, I want the 5% of the data per each hour

There might be a way to simplify this, but I believe the script below achieves what you are after... % read all the data into a...

Random sample, I want the 5% of the data per each hour

There might be a way to simplify this, but I believe the script below achieves what you are after... % read all the data into a...

9 jours ago | 0

| accepted