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Raunak Gupta


Last seen: Today

MathWorks

248 total contributions since 2019

I am an Application Support Engineer in the EDG Group, The Mathworks. My main responsibilities are to working with customers to help solve their problems and developing new MATLAB Features.
My Area of Interest are MATLAB and Signal Processing.

DISCLAIMER : Any Advice or opinions here are my own, and in no way reflect that of Mathworks.

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Answered
DFT, IDFT and DTFT
Hi, There are many Blogs provided by Steve for the understanding of Discrete Fourier Transform (DFT) and Discrete Time Fourier...

etwa 8 Stunden ago | 0

Answered
Finding minimum/maximum of function using Lagrange multipliers
Hi, I find some differences while understanding the question. First solve or dsolve is used to find exact solution of system o...

etwa 9 Stunden ago | 0

Answered
Using OR in simulink
Hi, By adding OR in the model means even if the traffic light is green or orange the pedestrian light should remain red. I hav...

etwa 13 Stunden ago | 0

Answered
pcshow not working with app designers UIAxes
Hi, The above-mentioned issue is a known issue and the concerned parties may be investigating further on it. Meanwhile if the ...

etwa 14 Stunden ago | 0

Answered
How to remove barcodes of Hamming Weight 0 from a Matrix
Hi, Logical indexing can be helpful here and reduce the amount of code as well removes the for loop that is there. Following w...

etwa 15 Stunden ago | 0

Answered
Indexing from equivalent rows in two matrices
Hi, One improvement I see in the code is you can remove for n= 1:numel(Behaviours1) Because strcmp also works when compar...

etwa 19 Stunden ago | 0

Answered
argmax of vector in matlab
Hi, From the question I understand you have a vector V that is constant, and you are taking dot product with a vector W, assum...

etwa 20 Stunden ago | 0

Answered
How can I create a vector from one specific data in 552 .hea files in Matlab?
Hi, This answer mentions about reading the physionet data where the .hea files are explicitly resides. If the application of ....

etwa 21 Stunden ago | 0

Answered
Separating features using imopen with bright and dark features.
Hi, I can suggest two approach to do the same. You may use contrast enhancement first followed by morphological techniques s...

ein Tag ago | 0

Answered
Normalize Multiple Outputs of Regression Network
Hi, The documentation link that is mentioned in the question is valid for feedforwardnet and that normalization works for vect...

ein Tag ago | 0

Answered
"removedelay" and predicting
Hi, From the documentation of removedelay I can see that the prediction on Nets in question will result in output of one-time ...

ein Tag ago | 0

Answered
Deep Learning AudioData Set Google Download
Hi Marcello, The video you mentioned in question uses the documentation example provided here. In the example, exact link of t...

2 Tage ago | 0

| accepted

Answered
Index exceeds number of array elements error
Hi, As suggested by Rik in comments and tried by me length of the input string must not return any error statement. So cell2ma...

2 Tage ago | 0

Answered
Vectoring the blurring of an image, with use of a kernel
Hi, Without Toolboxes such as Image Processing Toolbox I see the only way achieving the kernel multiplication with the help of...

3 Tage ago | 0

| accepted

Answered
How does 'InBagFraction' work in Treebagger?
Hi, The ‘InBagFraction’ is a fraction of input data to be used while creating a new tree. It has nothing to do with amount of ...

3 Tage ago | 0

Answered
What is the difference form using TreeBagger and Fitrensemble functions
Hi, In above case the output model as well as result will be different because both TreeBagger and fitrensemble uses different...

26 Tage ago | 1

Answered
DFT of sine wave
Hi, It looks like ‘df’ in the above code can be set to ‘pi/8’ to represent time shift in original signal. Other than that ever...

26 Tage ago | 0

Answered
how can i write such code using vectorisation
Hi, You may find below code useful to solve above question. x = 0:pi/100:8*pi; y = sin(x); y(y<0) = 0;

26 Tage ago | 1

Answered
Matlab2020a installation error on linux
Hi, There are a wide number of things which can cause errors such as this to appear. Some previous instances of this have appe...

27 Tage ago | 1

| accepted

Answered
Selecting Threshold from multithresh
Hi, The multithresh will return multiple threshold value in a vector to be used. Since you want to use only a single threshold...

27 Tage ago | 1

| accepted

Answered
Setting constants for different projectiles with a for loop?
Hi, As mentioned by @darova, you can vectorize the code instead of using if-else loops. Below code might help. global m cd A ...

27 Tage ago | 0

Answered
How do I code for a buttom grpup using the tags i made for them
Hi, From the question I assume you have the GUI ready for displaying original image to a UI Axes in App Designer. For plotting...

27 Tage ago | 0

Answered
Using loop to read column from excel sheet
Hi, You can use readmatrix instead of xlsread. readmatrix will return a matrix from the ‘.xlsx’ file that will contain column ...

27 Tage ago | 1

| accepted

Answered
Uni told us that we have free MatLab till 30.6.2020 but it says: Unfortunately, we were unable to find a match for a MATLAB and Simulink Campus-Wide License based on the email address you provided.
Hi, You can contact your sales representative to get detailed understanding about your license terms. If you don't know who yo...

27 Tage ago | 2

Answered
More efficient way of analyzing the Fourier transformation of an image?
Hi, From the code I see that ang for loop doesn’t seems to have dependency between the iterations on the data values, so maybe...

27 Tage ago | 1

| accepted

Answered
How is the quality of audio file when PSNR is more than 48?
Hi, In the code you have mentioned that PSNR = 20*log10(MAXVAL/MSE); This means PSNR = 20*log10(MAXVAL) - 20*log10(MSE)...

27 Tage ago | 0

Answered
Cumulative distribution fitting with an equation
Hi, From the question I assume you first want to fit a distribution to the data that you have attached according to parametric...

27 Tage ago | 1

Answered
How can I run the distributionfitter automatically?
Hi, The distributionFitter app is essentially used for fitting distribution to the data that you have. You can get the same pr...

28 Tage ago | 1

Answered
How to convert optical flow to feature matrix in videos
Hi, I am unsure about what you want to classify in the video using the optical flow estimation workflow. As per my understandi...

28 Tage ago | 1

| accepted

Answered
Fresnel diffraction at an angle
Hi, I assume the above code is taken from Fresnel Propagation using the Transfer function File Exchange Submission. Since I di...

28 Tage ago | 0

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