Answered

smoothing datasets containg nan

Interestingly, the default window size for the 'sgolay' smoothing method in the smoothdata function generates smoothed data that...

smoothing datasets containg nan

Interestingly, the default window size for the 'sgolay' smoothing method in the smoothdata function generates smoothed data that...

ungefär ett år ago | 0

Answered

How to auto save workspace variable with specific path and filename without Popup?

Have you tried using save? For example: d = 'Sunday'; y = 2017; filepath = 'E:\Matlab\'; filename = 'Data'; save(fullfile(f...

How to auto save workspace variable with specific path and filename without Popup?

Have you tried using save? For example: d = 'Sunday'; y = 2017; filepath = 'E:\Matlab\'; filename = 'Data'; save(fullfile(f...

ungefär ett år ago | 1

| accepted

Answered

'problemset4pt1' requires more input arguments to run

How are you calling the function? You can't just press the green Run triangle in the editor for a function that requires input ...

'problemset4pt1' requires more input arguments to run

How are you calling the function? You can't just press the green Run triangle in the editor for a function that requires input ...

ungefär ett år ago | 0

Answered

how to convert absolute time to real time and calculate the sampling rate

load metaData_Depth fn = @(s) datetime(s.AbsTime); dt = arrayfun(fn, metaData_Depth) delta_t = seconds(diff(dt)) max(delta_t...

how to convert absolute time to real time and calculate the sampling rate

load metaData_Depth fn = @(s) datetime(s.AbsTime); dt = arrayfun(fn, metaData_Depth) delta_t = seconds(diff(dt)) max(delta_t...

ungefär ett år ago | 0

| accepted

Answered

Sublot function is not working

Rename "/MATLAB Drive/subplot.m" to some other name. If you issue this command at the command prompt you should only see one ou...

Sublot function is not working

Rename "/MATLAB Drive/subplot.m" to some other name. If you issue this command at the command prompt you should only see one ou...

ungefär ett år ago | 0

Answered

How to plot the best fitted ellipse or circle?

xy = load("EllipseData.mat"); x = xy.x(:,1); y = xy.x(:,2); rho = sqrt(x.^2 + y.^2); theta = atan2(y,x);...

How to plot the best fitted ellipse or circle?

xy = load("EllipseData.mat"); x = xy.x(:,1); y = xy.x(:,2); rho = sqrt(x.^2 + y.^2); theta = atan2(y,x);...

ungefär ett år ago | 1

Answered

how to smooth data

You aren't going to get very good smoothing with such a small amount of data, but here is one possibility (of many): data = [ ....

how to smooth data

You aren't going to get very good smoothing with such a small amount of data, but here is one possibility (of many): data = [ ....

ungefär ett år ago | 0

| accepted

Answered

Save text of script in .mat file?

I suppose that one option would be to read the file contents into a string array and save that to your mat file. For example: ...

Save text of script in .mat file?

I suppose that one option would be to read the file contents into a string array and save that to your mat file. For example: ...

ungefär ett år ago | 1

| accepted

Answered

A compact way to replace zeros with Inf in a matrix

If you want to retain the non-zero elements of A and replace the zeros with Inf, then this is how I would suggest that you do th...

A compact way to replace zeros with Inf in a matrix

If you want to retain the non-zero elements of A and replace the zeros with Inf, then this is how I would suggest that you do th...

ungefär ett år ago | 3

Answered

Where has TODO/FIXME reports gone?

It has been moved to the menu you get when you click the Switch Windows button:

Where has TODO/FIXME reports gone?

It has been moved to the menu you get when you click the Switch Windows button:

ungefär ett år ago | 0

Answered

Read data with repeat counts

Here is one approach. data_strings = ["750.013"; "2*748.943"; "2*748.221"] % sample input data iData = 1; for iStr = 1:numel(...

Read data with repeat counts

Here is one approach. data_strings = ["750.013"; "2*748.943"; "2*748.221"] % sample input data iData = 1; for iStr = 1:numel(...

ungefär ett år ago | 1

Answered

day and month inverted in the time scaling

If you created your "time x array" by reading strings from a text file, for example, you need to specify the 'InputFormat' argum...

day and month inverted in the time scaling

If you created your "time x array" by reading strings from a text file, for example, you need to specify the 'InputFormat' argum...

ungefär ett år ago | 2

Answered

Optimize live plotting with a large data set

You definitely don't want to call plot repeatedly inside your loop. Here is a suggested approach where I created the plot outsi...

Optimize live plotting with a large data set

You definitely don't want to call plot repeatedly inside your loop. Here is a suggested approach where I created the plot outsi...

ungefär ett år ago | 0

Answered

Problem 568. Number of 1s in a binary string

The find() function returns the index of all non-zero elements in the input. ASCII characters (like '0' and '1') are all non-ze...

Problem 568. Number of 1s in a binary string

The find() function returns the index of all non-zero elements in the input. ASCII characters (like '0' and '1') are all non-ze...

ungefär ett år ago | 0

| accepted

Answered

I have a problem with my code

You have the following important line in your code commented out (the definition of the solve_friction_factor() function). Unco...

I have a problem with my code

You have the following important line in your code commented out (the definition of the solve_friction_factor() function). Unco...

ungefär ett år ago | 0

Answered

Matrix to Scalar Problem

t=0:3:60;%seconds Pos0=1;%position <<< Pos0 can't be zero since you divide by Wd*Pos0 when calculating alfa Vel0=0;%velocity ...

Matrix to Scalar Problem

t=0:3:60;%seconds Pos0=1;%position <<< Pos0 can't be zero since you divide by Wd*Pos0 when calculating alfa Vel0=0;%velocity ...

ungefär ett år ago | 1

Answered

How to increase the tolerance for comparing time points when synchronizing timetables?

Based on this section of the documentation: Synchronize Timetables to Arbitrary Time Vector N = 9; dt = .3; mkTime = @(t0) ...

How to increase the tolerance for comparing time points when synchronizing timetables?

Based on this section of the documentation: Synchronize Timetables to Arbitrary Time Vector N = 9; dt = .3; mkTime = @(t0) ...

ungefär ett år ago | 0

Answered

How to create plot from the data in .txt file ?

This should get you started. Note that the warnings are expected and can be ignored. T = readtable('Spatial Density.txt', 'Emp...

How to create plot from the data in .txt file ?

This should get you started. Note that the warnings are expected and can be ignored. T = readtable('Spatial Density.txt', 'Emp...

ungefär ett år ago | 4

| accepted

Answered

How do you cluster lines in 3D space?

I would suggest something like this since the main difference in your "groups" seems to be the approximate slopes of the three g...

How do you cluster lines in 3D space?

I would suggest something like this since the main difference in your "groups" seems to be the approximate slopes of the three g...

ungefär ett år ago | 0

Answered

Converting the outpur of a fit (e.g. sfit) into a string format, then pasting the text to a Text Area in app desginer

Another option (which does essentially the same thing) is this: load census; f = fit(cdate,pop,'poly2'); s = formattedDispl...

Converting the outpur of a fit (e.g. sfit) into a string format, then pasting the text to a Text Area in app desginer

Another option (which does essentially the same thing) is this: load census; f = fit(cdate,pop,'poly2'); s = formattedDispl...

ungefär ett år ago | 1

Answered

Why is NaN inserted in wrong position?

b = [1 3 0;-2 -1 5]; b(b(:,3)==5,3) = NaN % add ,3 to select only the third column for assignment

Why is NaN inserted in wrong position?

b = [1 3 0;-2 -1 5]; b(b(:,3)==5,3) = NaN % add ,3 to select only the third column for assignment

ungefär ett år ago | 1

Answered

How I get the frequencies in Hz of a specific signal?

I think this is close to what you are looking for. % % This code will generate a saltatory stimulus of 10 Hz up to 800 Hrz (the...

How I get the frequencies in Hz of a specific signal?

I think this is close to what you are looking for. % % This code will generate a saltatory stimulus of 10 Hz up to 800 Hrz (the...

ungefär ett år ago | 1

Answered

How to specify relative code paths in S-function builder

Have you tried the suggestion in this answer? https://www.mathworks.com/matlabcentral/answers/1568023-how-to-specify-relative-...

How to specify relative code paths in S-function builder

Have you tried the suggestion in this answer? https://www.mathworks.com/matlabcentral/answers/1568023-how-to-specify-relative-...

mer än ett år ago | 0

Answered

How to calculate the average of a cell array?

T = {[10, 1, 30], [15, 2, 10], [20, 3, 20]} A = vertcat(T{:}) % make an array from the elements of the cell array by stacking t...

How to calculate the average of a cell array?

T = {[10, 1, 30], [15, 2, 10], [20, 3, 20]} A = vertcat(T{:}) % make an array from the elements of the cell array by stacking t...

mer än ett år ago | 1

Answered

errore too many output

You are trying to do this [norm_sp,f_vector]=fft(acc_z,fs(n)); If you look at the documentation for fft you will see that ther...

errore too many output

You are trying to do this [norm_sp,f_vector]=fft(acc_z,fs(n)); If you look at the documentation for fft you will see that ther...

mer än ett år ago | 0

Answered

Read in a general binary file (for example, but not exclusively a jpeg file), make a modification and write a new file out verbatim--no altered bytes.

fileread reads the file as text. You need to open the file and read it as binary bytes (uint8) and then process it that way. R...

Read in a general binary file (for example, but not exclusively a jpeg file), make a modification and write a new file out verbatim--no altered bytes.

fileread reads the file as text. You need to open the file and read it as binary bytes (uint8) and then process it that way. R...

mer än ett år ago | 0

| accepted

Answered

Having issues with plotting a single level contour line on a matrix that has edges

From your simple example, it can be seen that there actually are two places where the interpolated surface passes through the le...

Having issues with plotting a single level contour line on a matrix that has edges

From your simple example, it can be seen that there actually are two places where the interpolated surface passes through the le...

mer än ett år ago | 1

Answered

How to add rows containing zeros to a matrix

Here is another way. A = rand(2,6) A(4,6) = 0

How to add rows containing zeros to a matrix

Here is another way. A = rand(2,6) A(4,6) = 0

mer än ett år ago | 0

Answered

Plotcube function not working

There is a plotcube function on the file exchange: https://www.mathworks.com/matlabcentral/fileexchange/15161-plotcube?s_tid=sr...

Plotcube function not working

There is a plotcube function on the file exchange: https://www.mathworks.com/matlabcentral/fileexchange/15161-plotcube?s_tid=sr...

mer än ett år ago | 0

Answered

Keep the latest desired value before changing to undesired value

There might be a way to do this using just basic Simulink blocks, but I don't have Simulink right now to test with. So, I'm goi...

Keep the latest desired value before changing to undesired value

There might be a way to do this using just basic Simulink blocks, but I don't have Simulink right now to test with. So, I'm goi...

mer än ett år ago | 0