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Pratyush Roy


Last seen: 2日 前

MathWorks

20 2020 年以降の合計貢献数

I am an Application Support Engineer at MathWorks.
My responsibility is to provide the best support for an application like ML,Image Processing, Signal Processing.
Disclaimer: Any articles/idea/opinions here are my own and in no way reflect that of MathWorks.

Pratyush Roy's バッジ

  • Knowledgeable Level 2
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An error while using polyxpoly for finding (xi,yi) of an intersecting line and circle
Hi, The x co-ordinates as well as the y co-ordinates of the line and the circle should not be combined as this generates a com...

24日 前 | 1

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How to generate 10 iid Gaussian random samples having mean 0 and variance 10. From the generated samples check the mean and the variance. Repeat the experiment for 100 samples, 1000 samples and so on.
Hi, The following lines of code might be helpful: mu = 0; variance = 10; num_sample = 1000; sample_arr = mu+sqrt(variance...

24日 前 | 0

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Why i have error when open Matlab
MATLAB might be unable to resolve the default path. The following link might be helpful: https://www.mathworks.com/matlabcentra...

24日 前 | 0

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Detecting watershed oversegmentation errors
The over-segmentation of the Watershed algorithm may be resolved by using the 'imhmin' function prior to using the 'watershed' f...

25日 前 | 0

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How to extract Best fitness graph for Genetic Algorithm in Matlab after each optimization run?
Hi, The following link might be helpful: https://www.mathworks.com/help/gads/creating-a-custom-plot-function.html Hope thi...

25日 前 | 0

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How can I use sigmoid layer at output for multilabel classification?
The following link might be helpful: https://www.mathworks.com/matlabcentral/answers/409466-how-can-i-use-a-sigmoid-output-lay...

26日 前 | 0

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Extra margin or boarder space around apps in 20a/20b.
CEF (Chromium Embedded Framework) windows scale up pixel positions for any DPI higher than 96 on a Windows system. However, it a...

26日 前 | 0

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Finding x and y values of a point on a Simulink plot
The fllowing link might be helpful for solving the problem: https://www.mathworks.com/matlabcentral/answers/92034-is-it-possibl...

27日 前 | 0

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Find a square in an image and give back it's location and color in the image
The following link might be helpful for solving your problem: https://www.mathworks.com/matlabcentral/answers/24943-detect-squa...

27日 前 | 0

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Does 'fitglm' use least squares or maximum likelihood to form the fit?
The 'fitglm' function makes use of the “Iteratively Reweighted Least Squares” method to find the regression coefficients in the ...

27日 前 | 0

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Hanning window Frequency Domain Graph
The graph for frequency response is correct. In case you want to generate a plot for magnitude response in decibels, make the fo...

約1ヶ月 前 | 1

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How can I remove outliers by using mahalanobis distance?
One can use p-values obtained from a chi-squared distribution to remove outliers using Mahalanobis Distance. The p-values f...

約2ヶ月 前 | 1

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How to find mosaic plot of this dataset
There is no direct implementation for mosaic plot in MATLAB. A workaround for this issue would be to access the zip file “mosa...

約2ヶ月 前 | 0

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Matlab function which convolves a one dimensional signal with a one dimensional filter
The following code snippet defines a function for 1D convolution: function z = conv1D(x,y) l = length(x); z = zeros(2...

約2ヶ月 前 | 0

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What is the difference between scalogram and scatteing coeffcients??
Consider a 1-D signal F. The zeroth order scattering coefficient can be obtained by convolving F with the scaling function  to o...

約2ヶ月 前 | 0

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3D Delaunay Triangulation Error/Weirdness
Since the number of faces is set to 100 for the given sphere function, the triangulation has become highly dense. Here are so...

約2ヶ月 前 | 0

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How can I sample a signal after it goes through a communication channel?
Assuming that the mathematical form of r(t) is known, the following code snippet will generate a sequence of sampled points from...

約2ヶ月 前 | 0

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How can I overlay in color a matrix over a grey scale image with Matlab2020
The function imagesc can be used to produce the desired results. Assuming that I and A are 2-dimensional arrays, the followin...

約2ヶ月 前 | 0

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Is it possible to use Euclidean Transform with estimateGeometricTransform function
The estimateGeometricTransform function cannot estimate non-scaling or rigid transformation matrices. However, there are o...

約2ヶ月 前 | 0

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Need help in making a Markov Probability Matrix
Assuming random values for the Markov probability matrix, the following snippet might be helpful for defining a Markov Probabili...

約2ヶ月 前 | 0

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