Prabhan Purwar
MathWorks
I am an EDG Engineer at Mathworks. My area of interest is works related to Signal processing, Navigation, Robotics, Augmented Reality, Artificial Intelligence, Image Processing and Machine Learning.
Disclaimer: Any advice or opinions are purely my own and not in any way that of MathWorks.
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Answer 10 questions that were unanswered for more than 30 days
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Content Feed
Error using netcdflib, error in netcdf.open
Hi Barbara, This is a known issue with the NetCDF library in R2020a and is now fixed in R2020b and further releases. The easie...
2 months ago | 0
Need help to draw lines.
Hi, Kindly have a look at the following link for plotting lines. File Exchange repositories such as Optometrika can act as a g...
3 months ago | 0
createMask is not creating a correct Contour
Hi, Currently, createMask doesn't allow different pixel resolution along a single Xaxis or Yaxis, thus needs to maintain a rati...
3 months ago | 0
Create a World map colored acording to my data
Hi, Kindly have a look at the following links- https://www.mathworks.com/help/map/create-a-world-map.html https://www.mathw...
3 months ago | 0
| accepted
Export products of code into a table on Matlab
Hi Evan. Kindly have a look at the following examples and workflow's regarding using and saving Tables in Matlab - https://ww...
3 months ago | 0
How to restart the time for each trial? (help with a for loop in a table)
Hi Mirthand, Kindly have a look at the following example code using rowfun. tt.TrialTime=cell2mat(rowfun(@(m)m-m(1),tt,'Groupi...
3 months ago | 0
Selecting specific number in place value of hunredth
Hi Nurul, The individual digits in the number signify one's, ten's, hundred's, and thousand's position which could be obtained ...
3 months ago | 0
Problem when installing matlab
Hi, This issue is being investigated by MathWorks. This could be because of a connection issue leading to system certificates ...
3 months ago | 0
3d curve fitting for a data set
Hi, I would suggest you to kindly have a look at the Curve Fitting Toolbox it can perform the surface fitting. Use the Curve Fi...
3 months ago | 0
How to turn off autosave in matlab online 2021a
Hi, .m and .mlx files are created and need to be saved for running code using RUN functionality, .asv files are backup files, w...
4 months ago | 0
Color map on polar histogram
Hi, Kindly have a look at the following links https://www.mathworks.com/help/matlab/ref/polarplot.html (Polar Plot) https://w...
4 months ago | 0
Possible fine-detail error in Matlab fft?
Hi, As the frequency resolution is defined as Fs/L, both the implementation and example seem rightly scaled and working as expe...
4 months ago | 0
Histogram plot of laser beam
Hi, Histograms are a way of visualizing the predominant intensities of an image, not the highest intensity region. As a definit...
4 months ago | 0
| accepted
What knowledges do I need to know for taking my matlab algorithm's to real life?
Hi, MATLAB supports a large number of Controllers along with Code Gen capability that enables you to design your algorithm on M...
4 months ago | 0
making a transformation of an already moving image
Hi, To make the letter k transform once per rotation you will need to change from letter coordinate frame to global coordinate ...
4 months ago | 0
Matlab Arduino I have to turn five lights on with a 0.5 second delay between each one, then keep them all on for 2 seconds, then turn them all off and repeat this 10 times. How do I repeat this?
Hi, You can use tic and toc for this. When you run tic it starts a stopwatch style timer, you can then use toc to know the elap...
4 months ago | 0
dbquit (or click "quit debugging") doesn't always seem to exit debugmode?
Hi, Could you please provide us the code along with the reproduction steps you have tried in a sequential manner so that we can...
4 months ago | 0
creating pie chart from dataset
Hi, Have a look at the following links: Import data from excel Allign data Draw pie chart (as KSSV suggested) It would be g...
8 months ago | 0
x(t)=2+3*Π4(t)*sinc(t)
Hi, Kindly have a look at the following code: x = linspace(-5,5); y = 2+3*pi*4*x.*sinc(x); plot(x,y) Links: https://www.ma...
8 months ago | 0
| accepted
kalman filter target trajectory
Hi, Kindly have a look at the following example which depicts a similar scenario: https://www.mathworks.com/help/vision/ug/usi...
8 months ago | 1
Feature Extraction On AN Image
Hi, The purpose of feature extraction technique in image processing is to represent the image in its compact and unique form of...
8 months ago | 0
Correct image distortion with reference image
Hey, The best approach to correct image for lens distortion is to first get the camera intrinsics either from camera calibratio...
8 months ago | 0
what is the difference between monostatic RCS and bistatic RCS?
Hi, As you are aware that in Monostatic Radar both Tx and Rx antennas are placed close to each other at the same location. Thus...
8 months ago | 0
File exchange not using mltbx file from GitHub release
Hi, The issue is now resolved and should work. Kindly adhere to the following guidelines for hasslefree submission. https://...
9 months ago | 0
| accepted
Use Matlab function inside Simulink MATLAB function
Hi, MATLAB Function block only support output such as scalar, vector and matrix. Output generated from pointCloud is a pointClo...
9 months ago | 0
| accepted
Calling a class folder (@class) places inside a private folder
Hey, As you have already mentioned in error, MATLAB doesn't support putting class definition inside a private folder. For more ...
9 months ago | 0
Mutual shadings with surfl
Hi, Following code illustrates the surfl implementation upon multiple surfaces. 1) First implementation explains surfl implem...
9 months ago | 0
Error in Simulink: Undefined function or variable 'uniqueOutput'
Hey, The following steps may help in resolving the issue. Under MATLAB Preferences > General settings, change the default path...
9 months ago | 0
Error in Simulink: Undefined function or variable 'uniqueOutput'
Hey, The following steps may help in resolving the issue. Under MATLAB Preferences > General settings, change the default path...
9 months ago | 0
Check if two hgtransform objects are colliding or overlapping (or find the minimum distance between them)
Hello hgtransform is primarily used for Graphic Object transformations and doesn't support overlaps functionality. If your ob...
9 months ago | 0
