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### MathWorks

63 total contributions since 2019

I am an Application Support Engineer at MathWorks. My main responsibilities are working on questions posted on MATLAB Answers.
My area of interest are Deep Learning and Autonomous Driving Vehicles.
DISCLAIMER: Any advice or opinions here are my own and in no way reflect that of MathWorks.

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Using wcompress in Matlab
Hi Rhania, There could be one of multiple reasons for the above error. The variable or function definition of "Encoded_wtbx_D...

4 days ago | 0

code a fractional ODE's ( caputo derivative ) using the finite difference method
Kindly go through the following links https://www.mathworks.com/matlabcentral/fileexchange/39961-finite-difference-methods-in-m...

4 days ago | 0

integration equvilants for diff() and dsolve()?
Hi jg, As diff is used for differentiataion, similarly the command int is used for integration. As for dsolve it solves for a s...

5 days ago | 0

How to plot a series of returns, and how to comapre two different Sharpe ratio on the same graphs
Hi, I am not sure what you mean by "instead of for series of returns". How I understand it is lets say there are two series dat...

6 days ago | 0

Matlab solver for Stiff Stochastic Differential Equation
Hi For solving Stiff ODE's you can refer to the following link. https://www.mathworks.com/help/matlab/math/solve-stiff-odes.ht...

6 days ago | 0

How can I solve the coupled differential equation with variable coefficients?
Hi Vellapandi, Continuing from David Goodmanson's comment you can solve it numerically. Below is the code for it. tspan = [0 5...

6 days ago | 0

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Bounding Box Not Drawn/Some Variables Are Empty
Hi Matpar, Even though you have loaded and trained on the data without error, the reason your bounding box shows empty is becau...

6 days ago | 0

How can I built a database in Matlab?
Hi Mariana, You can use the Database Toolbox to interactively build your Database and subsequent queries. Kindly go through the...

7 days ago | 0

How can we separate incoming real time data in MATLAB?
Hi Mohan, I am not sure what exactly you are trying to do here, but if you just want to plot data belonging to two thousand and...

1 month ago | 0

How do i plot annual histograms where year(x axis) and rainfall(y-axis)?
Hi Flora, Kindly go through the following links. It will help you bring dates to MATLAB from excel. https://www.mathworks.com/...

1 month ago | 0

how to extract feature from an image using pca for face recognition
Kindly go through the following links https://www.mathworks.com/matlabcentral/fileexchange/45750-face-recognition-using-pca ht...

1 month ago | 0

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How can I append different mat file data set to be able to do the analysis
Hi Enoch Go through the following link and check the answer by Guillaume and a comment by Leigh Martin. https://www.mathwork...

1 month ago | 1

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How do I convert a .csv to a .dat using MATLAB (SWAN Modeling)
Hi, Try reading the data from the .csv file into a table in MATLAB and then write that table into a .dat file. The following ...

2 months ago | 0

How to implement backward Euler's method?
Hi, Kindly go through the following existing posts for backward euler method. https://www.mathworks.com/matlabcentral/answers/...

2 months ago | 1

Wrote this file to compute ABD matrix, running into index/array issue
Hi Kevin, The error here is occurs in ReduceStiffnessMatrix function in the 7th line where you are accessing Q(3,3) but at that...

2 months ago | 0

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Solving an integration problem at specific time points
Hi, The issue here is vpa gives a symbolic output, to use it with a function like plot,there is a need to convert the output of ...

2 months ago | 0

How to use Gillespie's algorithm in MATLAB to display chemical reactions
Hi Yuhong Kindly go through the following links for existing implementations. https://www.mathworks.com/matlabcentral/answers/...

2 months ago | 0

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How to extract partial derivatives of some specific layer in the back-propagation of a deep learning model?
Hi Kindly go through the following link and examples in it. https://www.mathworks.com/help/deeplearning/ref/dlarray.dlgradient...

2 months ago | 0

Gaussian Elimination script question

2 months ago | 0

looping identical numbers and getting row indices
Find the attached code file for the solution. Hope it helps.

2 months ago | 0

Solved

Counting Sequence
Given a vector x, find the "counting sequence" y. A counting sequence is formed by "counting" the entries in a given sequence...

3 months ago

Solved

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

3 months ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

3 months ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

3 months ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

3 months ago

step by step to run LEACH code in Matlab
Hi, LEACH code implemenation can be found in the links below https://www.mathworks.com/matlabcentral/fileexchange/66574-leach...

3 months ago | 0

What is the difference between wrcoef/upcoef/appcoef in wavelet analysis?
Hi, If your purpose is solely reconstructing the signal on a certain level use any of the two wrcoef/appcoef. If you want some ...

3 months ago | 0

SVM Classifier using GLCM features
Hi, you already have extracted features, I am also assuming you have corresponding outputs related to extracted feature vectors....

3 months ago | 0