Rishik Ramena

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MathWorks

40 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
Portfolio rebalancing with changing assets
You might find these helpful. Consider going through the training videos and the examples.

22 days ago | 0

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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...

22 days ago | 0

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

26 days ago | 0

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Create a candle chart with non financial data ?
To generate a candlestick chart you have to have variables named 'Open', 'High', 'Low', and 'Close' in your data be it a Matrix,...

26 days ago | 0

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Output prediction Problem for ANN
Your code looks just fine. Do you intend to compare the closing prices of one day with the closing prices of the next day or wit...

26 days ago | 0

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How to implement MATLAB/Simulink generated C code onto intel processors?
If you're looking to generate code for deep learning applications targeting an embedded platform that uses an Intel® processor. ...

30 days ago | 0

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Update matlab compiled app
You cannot exactly "update" the app to add some functionality. Sending out a new executable is far safer. You can find ways to s...

30 days ago | 0

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Using .mat files to train convolutional NN - overfitting issue?
If you used a 'clear all' command, there's no way the previous created files and their contents(variables) are still in memory. ...

2 months ago | 0

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what is matlab code to be used to classify image by using GAN?
The use of GANs for classification is a relatively unexplored area right now. However if you want to try the python code you hav...

2 months ago | 0

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can I draw parallel using line labeling in video labeling app ?
You can define the ROI labels from the ones given here. You can use polylines to implement parallelism in them.

2 months ago | 0

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optimization proble risk parity
MATLAB does have a toolbox dedicated to solving optimization problems like these. Do have a look at its documentation for the ra...

2 months ago | 0

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Script that can solve any set of three linear equations?
Since you mentioned that you're not much familiar to MATLAB, you might wanna learn about how to represent equations. This here m...

2 months ago | 0

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Read Tif File shows Error "Cannot handle different values per sample for "BitsPerSample"."
I hope the workaround mentioned here worked.

2 months ago | 0

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Call User made Python modlue from Matlab
Try adding adding the path as: insert(py.sys.path,int32(0),'C:\Users\giaco\Documents\PROJ_WORK_Thesis\'); Please verify the fo...

2 months ago | 1

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testing, validating and training a feedforwardnet
You can add the split ratios manually to the network's divideParams. Here's a snippet showing the same. [x,t] = simplefit_datas...

3 months ago | 1

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Assign a default value to input() after a specific delay?
The input function does not support the timeout feature yet. As a workaround you can create a figure with timers. An implementat...

3 months ago | 0

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How to find CUSUM of a single state vector whose observation are comming at different time instant?
You could use the cummulative sum block. You can find examples here.

3 months ago | 0

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Training LTSM network error in command window
You probably need to convert the ytrain to categorical while passing to trainNetwork. ytrain=categorical(ytrain); [net] = trai...

3 months ago | 0

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Reading txt file from VBA for Matlab
You can process the NaNs after importing them to MATLAB. This link might be helpful.

3 months ago | 0

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How to create a ground truth data for images dataset with multiple variables.
As far as I understand, you wish to label images for training a CNN. You can do so by using the Image Labeler app. In addition t...

3 months ago | 0

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Time Series with month names
You can just convert the month names to datetime. T = readtable('Bottom Water Average DO Time Series.xlsx'); plot(datetime(T.M...

3 months ago | 0

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matlab coding required help for the below file
load('1.mat'); %load the mat file which contains a structure with many fields as mentioned in the readme file. imshow(cjdata.im...

3 months ago | 1

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Error occurs when I use importKerasNetwork function to import my LSTM RNN into MATLAB
You can try importing the layers of your model using the importKerasLayers function to import the model layerwise into MATLAB. Y...

3 months ago | 0

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Highlight cells in heatmap
You can do so by creating a custom colormap. The code below shows a simple implementation. xvalues = 1:5; yvalues = 1:5; cdat...

3 months ago | 0

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Readtable from a text file with multiple delimiter
You can try using readcell in the following way. I'm not sure how your data looks like. If this does not help in your data, you ...

4 months ago | 0

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1x0 emtpy double row vector?
If j > k, then x = j:k is an empty matrix. You might want to go through the documentation for colon operator.

4 months ago | 0

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A strange result with vectors
The precedence of .* operator is higher than : operator. You can find more about operator precedence in MATLAB here. So you can ...

4 months ago | 0

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subset algorithm! How to follow?
A few points to note regarding the implementation of the algorithm: step 12 could be implemented by using a while loop. And th...

4 months ago | 0

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m_grid problem for MATLAB 2019b
The code works fine. A snap of the output is attached for your reference. Try reinstalling the M_Map toolbox. You can find the d...

4 months ago | 0

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How to load data from Video Labelled Sessions?
LabelData is a timetable which is different than a regular table. If you need to access the time column as well you might want t...

4 months ago | 0