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Asvin Kumar


Last seen: Today

MathWorks

158 total contributions since 2019

Hi, I'm an Applications Support Engineer at Mathworks.

My areas of interest are signal processing and communications. I've also spent a little while on reinforcement learning, machine learning and deep learning.

DISCLAIMER: Any ideas or opinions posted here are my own and in no way reflect that of MathWorks.

Asvin Kumar's Badges

  • Revival Level 3
  • Knowledgeable Level 3
  • 6 Month Streak
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Contributions in
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Answered
Reverting Referenced Subsystems back to normal Subsystems
Hi Marvin, I can confirm that the feature to expand referenced subsystems was removed in R2020a. So, it looks like the best w...

5 hours ago | 0

Answered
How to visualize 4D .nii file?
nii files follow the NIfTI image format. You can use the niftiread function to read these files. MATLAB also offers other functi...

6 days ago | 0

Answered
Matlab barchart question.
Hi Pappu, It seems you've contacted Tech Support via email. I'll capture the workaround that we provided you over here for eve...

6 days ago | 0

| accepted

Answered
Numerical integration (trapz) between patch
The reason I1 and I2 are negative is because the H values are negative. trapz numerically integrates over the specified range by...

6 days ago | 0

Answered
Line plots from netcdf files
I'm not entirely clear as to what you want to plot. Since you seem like you're new to the language, let me give you a brief outl...

7 days ago | 0

Answered
Error in readInput - unrecognized function or variable 'swallow_csv'
Have a look at https://adared.ch/efficient-csv-reader-for-matlab/ The swallow_csv mex which was generated for windows will not...

7 days ago | 0

Answered
Getting dltargets.internal.getNetworkInputSizes error when trying to quantize trained network
[EDIT] David figured out that he needed GPU Coder Interface for Deep Learning Libraries. More details on the requirements fo...

7 days ago | 0

| accepted

Answered
Setting LSTM time serie prediction
Have a look at the Classification, Prediction, and Forecasting section from this page on LSTMs. As the page explains, you broadl...

7 days ago | 0

Answered
LSTM sequence-to-one regression
If you could share the code that you've written so far, the community will be able to help you better. If I still had to guess...

8 days ago | 0

Answered
Multiple inputs to ANFIS
You could use a for loop. Simple and straightforward. You could move your statements into a function block and write a script ...

8 days ago | 0

Answered
how to give weighted average method for defuzzification
This question posted earlier might be relevant to you: https://www.mathworks.com/matlabcentral/answers/479624-add-custom-defuzzi...

8 days ago | 0

Answered
I get an error with copyfile loop
Thanks for providing additional info. I'm not entirely sure why you're seeing this error. There are some pieces of information w...

8 days ago | 0

Answered
I have the file "RML2016.10b.dat" and want to extract the data inside it.
It mentions on https://www.deepsig.ai/datasets that the data is stored in a pickle format. @Juhi Singh's answer should give yo...

8 days ago | 0

Answered
How to group multiple data points (rows) from the same person into one row (containing the average) in a table?
This seems like just the use case for findgroups and splitapply. Both the linked pages have good examples that should help you ...

9 days ago | 0

| accepted

Answered
Standardization fitlm, weird results?
The reason your outputs aren't even in the same range is because you're comparing apples to oranges -- in two different places. ...

9 days ago | 1

Answered
Display name of line in plot
Simple solution The simplest solution here is to leverage legend. If legend doesn't make sense in your case because all the lin...

9 days ago | 0

Answered
overlay nifti mask on nifti volume
You can use the niftread function to import your 3D data. Once imported, it behaves just like any 3D matrix. You can then appl...

9 days ago | 0

Answered
Is there a way to get the pattern sequence form a generated graph?
Finding periodicity using autocorrelation seems like just the example for this scenario.

9 days ago | 0

Answered
Can zp2sos be used in an audio plugin?
The reason this error occurs is because you're using p as the "this" input argument and then overwriting it by the output of the...

9 days ago | 1

Answered
How do i get frequency coefficients from an audio file
The short time fourier transform (stft) should be a good start if you want to use frequency coefficients to classify sounds. T...

9 days ago | 0

Answered
How to create a for look that will allow me to iteratively add data to my cell array as I analyze each of my EDA files
EDA_data=cell (40,6) for n=1:40 % you can add a call to your function here to extract the six values % used in the ne...

9 days ago | 0

Answered
Global variables not working
Your global variable 'serialObject' has no data in it. That's the root cause. We'll see why. When the code hits the first disp ...

9 days ago | 0

Answered
How do apply LSA and train a Deep Learning LSTM network?
You might be interested in the fitlsa function. Here's an example on using LSTMs for text generation: Generate text using LSTMs...

2 months ago | 0

Answered
Como se evalúa y grafica una función en App Designer
y = f(x); This should work. Esto debería funcionar (Spanish from Google Translate)

2 months ago | 0

Answered
Reference instances of class object
It's not a good habit to name variables with respect to input/strings/numbers. Please strongly consider avoiding this pattern. H...

2 months ago | 1

Answered
Why do I get the error ''Unrecognized function or variable 'regimeNormalization'. Error in @(data)regimeNormalization(data,centers,centerstats)''
The helper function regimeNormalization is defined at the bottom of the example page.

2 months ago | 0

Answered
Add image on pcshow plot
Here's a simple example that meets your requirements halfway. You can adapt it as necessary. This example uses uicontrol to add...

2 months ago | 1

| accepted

Answered
Mask R-CNN Evaluation metric
Masks represent an area. Simliar to IoU for bounding boxes, there is a metric for masks too called MaskIoU. You could google mor...

2 months ago | 0

| accepted

Answered
Error when using timetable/retime
Ah, I had a second look. This is a known bug and is reproducible in R2019a. It was fixed in R2019b. You could try one of two t...

2 months ago | 0

| accepted

Answered
Call python stepper motor code to Matlab with Raspberry Pi
This is not a MATLAB error. The output that you're seeing comes from the system. Refer doc page for system command's output. Th...

2 months ago | 0

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