Swetha Polemoni
MathWorks
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I am Application Support Engineer at Mathworks.
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Answer 10 questions that were unanswered for more than 30 days
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Feeds
How visual speech recognition is done using CNN and LSTM in Matlab?
Hi It is my understanding that you wanted to know how to work/ use LSTM and CNN in Matlab. The following documentations might h...
ongeveer 3 jaar ago | 0
Can I control create interface to save pictures from Xenics Software ?
Hi Haris It is my understanding that you wanted communicate with Xenics Software using matlab. You can connect Xenics Camera t...
ongeveer 3 jaar ago | 0
How to get feedforwardnet outputs for all hidden neurons?
Hi xin hui leong, The error "unable to perform assignment because the left and right sides have different number of elements" w...
ongeveer 3 jaar ago | 1
How to set up Sparkfun Redboard in MATLAB Support Package for Arduino Hardware Documentation
Hi It is my understanding that you want connect Sparkfun Redboard to Matlab. The first step is to get hardware support package....
ongeveer 3 jaar ago | 0
How do I partition data sets for cross validation in MATLAB?
Hi It is my understanding that you want to partition the dats randomly. You can use either cvpartition from Statistics and Mach...
ongeveer 3 jaar ago | 0
| accepted
reverse transformation for scale up 2 times for rows and 1.6 times for columns(a image), don't use MATLAB or any other build-in functions imwarp
Hi Inverse of matrix can be found by inv. It is my understanding that you want to find the inverse of your image 'inp'. The fo...
ongeveer 3 jaar ago | 0
Old-version simscape model cannot run on MATLAB 2020
Hi, The error is because Simscape no longer supports use of first-generation functions and blocks in 2017, so it cannot find t...
ongeveer 3 jaar ago | 1
R2021a can't use Help, and reported failure. Can't set the preference - Help
Hi, The "NoClassDefFoundError" error is thrown because MATLAB was not able to locate Java Runtime libraries that are used by th...
ongeveer 3 jaar ago | 0
feedforward net for regression.
Hi Pappu Murthy, It is my understanding you wanted to train a network given input and true lables(Supervised learning). I under...
ongeveer 3 jaar ago | 0
Matlab 2021a freezes on startup for ~5 min, then becomes responsive
Hi Please reach out to our Support Team. They would be able to assist you with installation and licensing issues.
meer dan 3 jaar ago | 0
NUFFT vs FFT?
Hi fft and nufft both are fast ways to calculate Discrete Fourier Transform of any signal. The only disadvantage of fft over n...
meer dan 3 jaar ago | 0
increase processing speed of code entropy histcount
Hi In the following documentation general techniques to improve the performance has been mentioned Techniques to Improve Perfo...
meer dan 3 jaar ago | 0
Adding a new plot to existing figure
Hi You cannot have two y axes in fit however you can have z axis along with x and y axes to fit your data. Here is an example ...
meer dan 3 jaar ago | 0
Compare two Fourier series to depict the signal smoothness
Hi You can use findpeaks to find local maxima i.e., all the peaks in the signal. Now invert the siganl and use "findpeaks" to ...
meer dan 3 jaar ago | 0
How to share variables across Matlab App Designer Apps
Hi A similar question has been discussed on the following MATLAB answers link. You may find this helpful How to share data bet...
meer dan 3 jaar ago | 0
Can a neural net be trained to solve this problem?
Hi It is my understanding that you want to categorise trace segment to its mean line(class). You can use Classification for the...
meer dan 3 jaar ago | 0
Problem installing the Communications Toolbox Support Package for USRP
Hi Here is a possible work around/solution that you may find useful It still should be possible to programmatically setup your...
meer dan 3 jaar ago | 0
i am trying to solve ODE with the help of laplace transform, but it shows error in doing so, why?
Hi The error is due to usage of x(t) before decalaring it . Try the following line of code. syms x(t) Hope this helps
meer dan 3 jaar ago | 0
| accepted
Transformation of time domain to frequency domain
Hi You may find the following documention Digital and Analog Filters useful to understand more about filters. This documentati...
meer dan 3 jaar ago | 0
| accepted
Training a audio classification neural network with .csv's containing features over time
Hi It is my understanding that you want to feed the network with tabularTextDatastore. You can use transform to convert the t...
meer dan 3 jaar ago | 0
MATLAB Neural Network - Forward Propagation
Hi, You might want to check on the format of for loops you have used(for ii = 0: ii < length(NINPUTS)). This can be replaced w...
meer dan 3 jaar ago | 0
in the picture below you can find a message which describe what I need to fix in these two equations in the description.
Hi As the warning clearly mentioned, try replacing inv(A + diag(zeta))*b with b/ inv(A + diag(zeta)). Because in Matlab inv(...
meer dan 3 jaar ago | 0
| accepted
Biexponential fit help?
Hi, The following answer might help you. Biexponential fitting (non-linear regression)on Matlab
meer dan 3 jaar ago | 0
How to save data when execution is paused
Hi Divij Gupta In Matlab, whenever a pause button is pressed all the workspace variables are updated according the latest run o...
meer dan 3 jaar ago | 0
Error Using Prediction With LSTM
Hi It is observed that you are calling "predict" on the layerGraph object/layers array. predict is not allowed on layerGraph ob...
meer dan 3 jaar ago | 0
| accepted
Under, perfect, and over sampling a function and zero-order hold interpolation
Hi, For a signal sin(2*pi*fm*t) , fm is its frequency. To sample this signal replace t = N*Ts. where N is an integer and Ts is ...
meer dan 3 jaar ago | 0
| accepted
Get image mouse click position in App Designer
Hi, The following answer might help you. How to get pixel's position of an image in UIAxis in AppDesigner?
meer dan 3 jaar ago | 0
| accepted
signal.fftconvolve equivalent in Matlab
Hi Avik Mahata It is my understanding that you want to do convolution and autocorrelation in matlab. You can use Matlab functio...
meer dan 3 jaar ago | 0
Plotting graph with different color points
Hi To generate a random value in a given range, "randi" Matlab function can be used. Following is an answer that will help to ...
meer dan 3 jaar ago | 0
Rectangle Detection in An Image
Hi Ryan Murphy, You may find Edge detection methods for finding object boundaries in images helpful.
meer dan 3 jaar ago | 0
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