Answered
i collected data from a spectrum analyzer and it saved as a .mat file. I confirmed that the signals I collected are baseband signals. Do I still need to create a .bb format file from this data? How is the .mat file different from the .bb file?
It is not mandatory to save base band signal in the .bb format. comm.BasebandFileWriter object store the base band signals in ...

4 years ago | 0

Answered
how to add a FeedForward layer after my LSTM layer
You could add desired layers after your LSTM network layer by specifying them as columns in the layers array. Consider an examp...

4 years ago | 0

Answered
Drop-down icon in matlab app designer
Hello, The position of drop-down menus does not affect its functionality. I understand you would like to add two drop-down men...

4 years ago | 1

| accepted

Answered
Using subs on contents of a cell
You can substitute I1 with I_val and I2 with I_val seperately. I = subs(cell2sym(I),I1,I_val); But once you do substitution w...

4 years ago | 0

| accepted

Answered
how can I silently uninstall MatLab R2017
Hi, The following link will be useful. https://in.mathworks.com/matlabcentral/answers/100721-how-do-i-use-the-silent-uninstall...

4 years ago | 0

| accepted

Answered
How can I genereate only one h file?
Hello, You can have a single header file modelname.h as codegen output by setting the File packaging format in Simulink Model C...

4 years ago | 0

Answered
Expressing a matrix with parameters and letters
Define the variables F1, F2, and F3 as symbolic variables. syms F1, F2, F3 B = inv(A); b = [0 F1 0 F2 0 F3 0 0 0 ]’; x = B*b...

4 years ago | 1

| accepted

Answered
Histogram with different sized bins and edges to illustrate wave periods
The following code will plot the above bar graph waveperiods = (9:21); observations = [1 5 14 22 28 5 6 2 1 0 1 0 0]; groups ...

4 years ago | 0

| accepted

Answered
Unable to play audio because no audio outputs were found
If you just want to play the music in MATLAB Online, you could use ‘sound’ instead. But it will have lesser capabilities compare...

4 years ago | 0

| accepted

Answered
finding sub sequences of a data set
I assume you want to extract a sub-vector of length 30 from each row. But the total length of the column is 129 which is not div...

4 years ago | 0

Answered
Need to assign values to variable in a vector
The subs function helps in doing the symbolic substitution. The following snippet will do the substitution. x1=input("Please In...

4 years ago | 0

Answered
Simulink modeling from the command line
Refer to the following MATLAB Answer. Question 2 addresses the above query. https://in.mathworks.com/matlabcentral/answers/1011...

4 years ago | 0

| accepted

Answered
Input folders or files do not contain specified file extensions:
Here if you do not define the ReadFcn explicitly, the default function used is imread() which is not supported for .nii extensio...

4 years ago | 1

| accepted

Answered
Inserting Bounding Boxes when it is more than two together
A simple if condition before displaying the annotation will do if (size(bboxes,1) > 1) for ii = 1 : size(bboxes, 1) ...

4 years ago | 0

| accepted

Answered
alt key in live script
You can disable the toolbox mnemonics by executing the following command. com.mathworks.desktop.mnemonics.MnemonicsManagers.get...

4 years ago | 4

Answered
How to plot PWM signal with specific duty cycle and frequency ?
The following answer explains how to generate a square wave in Matlab with frequency,amplitude,voltage offset, and duty cycle....

4 years ago | 1

| accepted

Answered
rand(n,1)
It is difficult to reason why exactly three different pairs generated from the above information. Atleast from MATLAB R2012a on...

4 years ago | 0

Answered
Question of FFFT in Matlab
The frequency of the sine wave is defined as 128 Hz (f = 128) in the above code. Hence there will be two impulses (ideally, but ...

4 years ago | 0

| accepted

Answered
Editing y limits for multiple axes using property inspector
The properties of both the axes can be edited by using the property inspector. If the right axes property needs to be edited, f...

4 years ago | 0

| accepted

Answered
Audio Record Object Empty when trying to start/stop with buttons in AppBuilder
Here the recObj is local to the function RECORDButtonPushed and its scope is limited to that function. Hence it is not accessibl...

4 years ago | 1

Answered
Bug with conv2
The above output from conv2 with the argument as 'valid' is expected. If you are computing in the paper the kernel needs to be ...

4 years ago | 1

| accepted

Answered
Not defining backward loss leads to an 'Abstract classes cannot be instantiated' error. Why is that?
I think your MATLAB version is R2019a or earlier and you are referring to the documentation of R2019b. In MATLAB R2019a and ear...

4 years ago | 0

Answered
Error when building a array code
Hello, The error is generated since the right hand side of zm3(i,j+1) = rain(:,:,2+yr*38); is a matrix with dimension 141x71...

4 years ago | 0

Answered
How can I create a column matrix whose elements are unknown variables
If you know n, then you could define a column vector as vector = zeros(n,1); Later you can assign the values for each position...

4 years ago | 0

Answered
How to separate the elements of a table with their names?
I am not sure of getting rid of the for-loop. But the following code can achieve what you are looking for neatly. Assume T is ...

4 years ago | 0

Answered
Centered FFT & DFT: cannot devise required phase shift vector(s).
fftshift will shift the zero frequency components to the center of the spectrum.

4 years ago | 0

Answered
How to change vertical alignment on worldmap figure?
The following code will move the meridian (longitude) labels to ‘baseline’ position. load korea map_axis = worldmap(map, ref...

4 years ago | 0

| accepted

Answered
How to create a bounding box with a right angled triangle.
I assume that a bounding box is needed to be drawn over a right-angled triangle. x1 = [0 1 0]; y1 = [0 0 1]; polyin = poly...

4 years ago | 0

Answered
How to find cells corresponding to zero lag in an autocorrelation function
The zero lag produces the highest value in the autocorrelation output. Hence simply finding the maximum value of the autocorrela...

4 years ago | 0

| accepted

Answered
anyway to call checkbox in appdesigner programmatically?
I assume that you have already created a checkBox in app-designer, and you want to check or uncheck the checkBox programmaticall...

4 years ago | 1

| accepted