Community Profile

# Raunak Gupta

### MathWorks

259 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
Why does my R-square value 1 on Regression Learner App?
Hi, After understanding the response plot, I can say that the RMSE(root mean squared error) in the calculation is two order of...

7 hours ago | 0

Answered
how to prepare 3D nifti images for 2D semantic segmentation network training
Hi, From my understanding you have bunch of ‘nifti’ image you can read into a matrix. You can combine those bunch of images al...

8 hours ago | 1

Answered
FFT at specific frequency
Hi Ilan, In the last ‘No Loop’ Method, time and fAxis(frequency) are two different length vectors and you cannot get elementwi...

8 hours ago | 0

Answered
license manager error - 9
Hi, There is a similar question Why do I receive License Manager Error -9? which is answered and can be helpful to resolve the...

9 hours ago | 1

Answered
Parameter optimization - lsqnonlin with normcdf
Hi, I see that the optimization variable in the question is v. Since in lsqnonlin you are mentioning v as your parameter I sug...

1 day ago | 0

Answered
How to save while loop values in multiple arrays of different length to merge if condition if met
Hi, Below code might help you. Here I am finding the first index in cumulative sum where the value is greater than threshold a...

1 day ago | 1

| accepted

Answered
Data augmentation in CNN
Hi, I see that the amount of data that you have is quiet less, so the Data Augmentation is very much appropriate while trainin...

1 day ago | 0

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Answered
Integration of the Green's function along a cylindrical surface
Hi, While integrating the following function with respect to two variable the overall function still comes out dependent on fo...

2 days ago | 0

Answered
How could I identify an object that has a Gaussian distribution and compute its area?
Hi, I see a similar question answered here about fitting gaussian distribution to the intensity of an image. There, mixture of...

2 days ago | 0

Answered
How to solve ODE with symbolic conditions
Hi, I tried to solve the differential equation with the given code and I see that the returned wSol(r) is a function of r only...

2 days ago | 0

| accepted

Answered
Range and angle discrepancy with sph2cart transformation.
Hi, From the check code at the last I see the definition you have used to derive theta and range seems incorrect. Here is the ...

2 days ago | 1

| accepted

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...

3 days ago | 2

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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...

3 days 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...

3 days ago | 1

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 ...

3 days 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...

3 days ago | 1

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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...

3 days 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...

4 days 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 ....

4 days 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...

4 days 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...

4 days ago | 1

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 ...

4 days 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...

5 days 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...

5 days 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...

5 days 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 ...

5 days ago | 1

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...

28 days 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...

28 days 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;

28 days 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...

29 days ago | 1

| accepted

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