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Rishik Ramena


Last seen: 3 días ago

MathWorks

67 total contributions since 2020

I'm an Application Support Engineer at MathWorks
Disclaimer: Any articles/ideas/suggestions/answers are my own and in no way reflect that of the MathWorks

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Answered
TRANSLATE REGRESSION TREE / DECEION TREE TO SQL-LIKE RULES
Currently there is no MATLAB function to parse the classification tree objects and print out the path to all the leaves. This sp...

18 días ago | 0

Answered
Determing deviation from the mean(number of sigma) and plotting
You can use the mean and std function to get the mean and standard deviation of your timeseries data. You can then use a formula...

18 días ago | 0

Answered
How can I remove the nan value (with index code -1) while reading a tiff image in Matlab
You can try using the read function to read the tiff image. This function takes in a tiff obejct as input, so create a tiff obje...

18 días ago | 0

Answered
Control iphone vibration from Matlab
You can use MATLAB to acquire accelerometer, magnetometer, gyroscope, location, and image data from built-in sensors on your iPh...

18 días ago | 0

Answered
what is fuzzyf code in matlab ? how can i replace this with 2021a version of matlab please help .
There certainly is no function named 'fuzzyf' in MATLAB. However fisrule is a valid function which is used to create fuzzy rule ...

18 días ago | 0

Answered
How to apply for loop index on plotting?
Everything here seems fine, just make sure that the second plot in figure 3 falls within the set limits for the axes. It seems l...

22 días ago | 0

Answered
Cross -validation implemented in the the nprtool
If you want to check the implementations of uncompiled matlab functions, use the type command from the MATLAB command window. Fo...

23 días ago | 0

Answered
CV in Statistics and machine learning toolbox
You can have a look at the common cross validation techniques here. If you want to implement them in MATLAB, you can use some of...

23 días ago | 0

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Answered
Image segmentation, Label image
You can try going through the image segementation part first. Have a look at this code from the file exchange. This might help y...

24 días ago | 0

Answered
Can we run a very large array computation on Matlab online?
A MATLAB Online session is a linux instance in one of the MathWorks servers. So, all the linux commands to find the system and h...

24 días ago | 0

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Answered
how are constraints dealt with in 'bayesopt'
The constraint violations are dealt with depending on the type of the constraint set. Do have a look here to understand more abo...

25 días ago | 0

Answered
Best way to get constant plot sizes with varying width Yticklabels?
The plot sizes rendered by the exportgraphics function for vectors will be the same, but the dimensions of the pdf file will dep...

25 días ago | 0

Answered
Can I remove axes from a tiledlayout, and have it reflow?
You can index the tiles using the nexttile(tilelocation) format. Then use the delete(gca) to delete any previously created tile ...

3 meses ago | 2

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Answered
Circle Detection in binary image
Since you cannot use 'imfindcircles', have a look at this blog post for an implementation without using the 'imfindcircles' func...

3 meses ago | 0

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Answered
How to make prediction using DNN, LSTM, RNN, CNN regression models?.
A few basic steps for approaching a prediction problem: Read the data into MATLAB (train, test and predict) Define your networ...

3 meses ago | 0

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Answered
Using Weighted Classes in CNN
The 'ClassWeights' property for the classificationLayer has been introduced in MATLAB R2021a. So if you are running a version pr...

3 meses ago | 0

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Answered
Changing the start folder for compiled standalone app
Have a look at this answer. You would need to add the required parts of this code to the OpeningFcn() of your application.

3 meses ago | 0

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Answered
Selecting certain timetable data based on the date they occur and replacing the corresponding variable at that time with nan
You can index the timetables using the timestamp. You can also select a period of time as the index. Have a look at the examples...

3 meses ago | 0

Answered
Integrating C# code into Simulink?
As of now, Simulink only takes up custom blocks which integrate with C/C++ code. For further details or if you need help regardi...

3 meses ago | 0

Answered
Matlab online is not working
Have a look at this answer for fixes related to your problem. If nothing works, do talk to your university for the license issue...

3 meses ago | 0

Answered
3D histogram plot for a tensor data
Have a look at the solution posted here. You can use cart2sph to convert your cartesian coordinates to spherical coordinates. Or...

3 meses ago | 0

Answered
'Double' data is loading as 'single' from database when database reports 'double'
Try setting the 'ToScalar' to true in <https://in.mathworks.com/help/matlab/ref/table2struct.html#btx37wq-2 table2struct> .

3 meses ago | 0

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Answered
Looking for someone to Help/model create a closed loop system i have a drawing of
Try using the Simscape Multibody toolbox. The documementation for the same can be found here.

3 meses ago | 0

Answered
How do I save a portion of an http mp3 bitstream of a radio broadcast in Matlab?
webread expects the response to be complete before it can process the data. So a workaround for processing streams froms the web...

3 meses ago | 0

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Solved


Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
For a row vector: V=[7 1 2 -3] there is one sign change (from 2 to -3). So, the function you write must return N=1. F...

3 meses ago

Solved


Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

3 meses ago

Answered
Is there a way to insert a common ylabel to secondary axes in a tiled layout?
You need not create a figure for each of your tile, instead you can have a common figure which can then later be labelled as sho...

3 meses ago | 1

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Answered
Portfolio rebalancing with changing assets
You might find these helpful. Consider going through the training videos and the examples.

4 meses ago | 0

Answered
extract the zero-order spectrum and the positive first-order spectrum
Currently there are no MATLAB inbuilt functions to extract the zero order and the first order spectrums. You can however use fft...

4 meses ago | 0

Answered
MATLAB license activation issue
You might have your issue addressed here. For starters you can try running the app as administrator.

4 meses ago | 0

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