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Roshni Garnayak


Last seen: 1 month ago

MathWorks

70 total contributions since 2019

I am an Application Support Engineer at MathWorks India Pvt Ltd. My domains of interest are Signal Processing and Communication Systems.

DISCLAIMER: The advice and opinions I post are solely my own and do not reflect the Mathworks organization in any way.

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Roshni Garnayak's Badges

  • 3 Month Streak
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  • Knowledgeable Level 2
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Answered
Error while uninstalling or re-installing
If the MATLAB uninstaller was unable to complete, try executing the uninstall.exe from $MATLAB\uninstall (where $MATLAB is the f...

1 month ago | 0

Answered
Fail to install R2019b update 4. After the failure I cannot start MATLAB due to libmwfl.dll and icuio61.dll missing.
If the MATLAB uninstaller was unable to complete, try executing the uninstall.exe from $MATLAB\uninstall (where $MATLAB is the f...

1 month ago | 1

Answered
Verbosity argument issue with Simulink external mode
Follow these steps to resolve the error: 1. Go to configuration parameters -> Code Generation -> Real-time Windows Target 2. ...

1 month ago | 0

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What does this mean Requested 313121x313121 (730.5GB) array exceeds maximum array size preference.
This issue could be due to RAM limitations. Try the following suggestions: 1. Go to MATLAB > Preferences > Workspace and ensu...

1 month ago | 0

Answered
Problems with entering a angle on matlab
While computing b in your code, you have not considered the phase angles. So to obtain the desired results you can refer to the ...

2 months ago | 0

Answered
Simscape add-on installation error
To contact Technical Support, use the following link: https://www.mathworks.com/support/contact_us/

2 months ago | 0

Answered
Not able to install Arduino support package in matlab 2019a
Sometimes support packages become corrupt and cannot complete installation or encounter errors that you cannot get past. In thes...

2 months ago | 0

Answered
How do I make two waves move simultaneously towards each other to see the change in amplitude?
You can use the 'pause' and 'hold' functions to create a dynamic plot. Refer to the following code to get an idea: x = 1:1000; ...

2 months ago | 1

Answered
How can I disable the background grid of a text box inside the graph in matlab R2019b?.
The default background color of the textbox is set to 'none' which renders it transparent. You can remove the gridlines by chang...

2 months ago | 1

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Answered
How to initialize constants for a Simulink model from a MATLAB script?
You can use the callbacks available in the Model Properties for initializing constants. The callbacksthat you can use depending ...

2 months ago | 0

Answered
How to change color model of all pictures in image datastore?
Instead of using ‘transformFcn’, you can use the ‘ReadFcn’ parameter in the ImageDatastore object. You can define the colour spa...

2 months ago | 0

Answered
Plotting for a wide range of values and Log-Log Scale
If you attempt to plot the data using ‘loglog’ with ‘hold on’ enabled, the data plots as a linear plot. You can store the ‘Diffe...

3 months ago | 0

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why is it takes so much to calculate this function ?
You can use the MATLAB Profiler to check which part of the code is consuming more time to run. Once you figure that out, you can...

3 months ago | 0

Answered
Training-progress Plots not supported for compiled EXE?
To check if the code is run in the MATLAB mode or deployed mode, use ‘isdeployed’ function. Refer to the following link to know ...

3 months ago | 0

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Answered
navigation and map format in mapping toolbox
You can use the ‘geoshow’ function to display the world map. Refer to the following link to get to know about the ‘geoshow’ func...

3 months ago | 0

Answered
compare files stopped working after upgrading to Catalina
Try increasing the Java Heap memory. The error might be occurring due to not enough memory. To increase the Java heap memory, r...

3 months ago | 0

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How would you make a contour plot of an xls 3 columns Matrix?
You can load the data from the excel file to the MATLAB workspace by using the ‘readmatrix’ or ‘xlsread’ functions. You can us...

3 months ago | 0

Answered
replacing zeros with one and storing it in matlab
Let the zero matrix be A and the row number is assigned to a variable x. Then the following piece of code can help you convert t...

4 months ago | 0

Answered
Filling an excel spreadsheet as I am calculating values simultaneously?
You can refer to the following link for writing data to Excel Spreadsheets:https://www.mathworks.com/help/matlab/import_export/e...

4 months ago | 0

Answered
Image Labeler does not export previously saved data.
This issue has been resolved in MATLAB R2020a.

4 months ago | 0

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Computing 1024 FFT from noisy ecg
You can refer to the following link to get examples on how to remove noise from ECG signals. https://www.mathworks.com/help/dsp...

4 months ago | 0

Answered
How to remove a value from matrix with same values in different positon?
You can obtain the indices of the first occurrence of each value in a matrix using the ‘unique’ function. Refer to the following...

4 months ago | 0

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Answered
Simultanously plotting on two figures
You can specify two different handles for the two axes and while plotting specify the handle of the axis you want to plot on. Th...

4 months ago | 0

Answered
MATLAB sgtitle overlapping with the title of the subplots
You can change the position of the subplots to make the subplot grid title (defined by ‘sgtitle’) visible. To do this, use the f...

4 months ago | 0

Answered
ber vs snr ofdm using fft and ifft
Refer to the following link for examples and workflows for plotting bit error rate with respect to signal-to-noise ratio: https...

4 months ago | 0

Answered
Power spectrum of audio signal
To import the audio file into MATLAB workspace, use the ‘audioread’ function. Refer to the link below to get the details of ‘aud...

4 months ago | 0

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NOISE REMOVAL IN EMG SIGNAL
A simple filtering noise removal technique for EMG signals is to attenuate some high-frequency and low-frequency noises using di...

4 months ago | 0

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How do I plot symbol error rate against signal to noise ratio for m-ary pam modulation in matlab?
Refer to the following link for examples and workflows for plotting symbol error rate with respect to signal-to-noise ratio: ht...

4 months ago | 0

Answered
Custom Argument Validation Function for NameValueArgs
Try using ‘varargin’ in place of ‘NameValueArgs’. To validate the properties and assign values to them, use the ‘set’ method. ...

5 months ago | 0

Answered
Stacked bar plot not working correctly
It was a bug. The issue has been resolved in MATLAB R2019b.

5 months ago | 0

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