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Roshni Garnayak


MathWorks

59 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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  • Knowledgeable Level 2
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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...

17 days 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...

19 days ago | 0

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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 ...

19 days ago | 0

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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...

19 days ago | 0

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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...

19 days 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...

19 days ago | 0

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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...

2 months ago | 0

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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...

2 months ago | 0

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

2 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...

2 months ago | 0

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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...

2 months ago | 0

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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...

2 months ago | 0

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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...

2 months ago | 0

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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...

2 months ago | 0

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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...

2 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...

2 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...

2 months ago | 0

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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. ...

3 months ago | 0

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

3 months ago | 0

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App Designer : Adding elements to listbox
‘Items’ property of listbox can be used to add elements into the list box. You could use the ‘ValueChangedFcn’ of checkbox to po...

3 months ago | 1

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Importing data from specific line
You can use the ‘readmatrix’function to import data from your .csvfile. To specify the range of data that you want to import, us...

3 months ago | 0

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Fitting experimental data to solve for rate constants
You can use Symbolic Toolbox to solve your problem. Refer to the following link for the User’s Guide: https://www.mathworks.com...

3 months ago | 0

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Trouble With Table And Graph (Real World Application of Loops and Branches)
There are couple of things to note here: M_vec(final)is of size 1x1 and contains only the last element of the vector M_vec. Whi...

3 months ago | 0

Answered
Matlab doesn't open in my MacOs Mojave 10.14.6. It freezes
You can contact the MathWorks support team to help you solve this issue https://www.mathworks.com/support/contact_us/

3 months ago | 0

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How to maximise a variable by putting bounds for an user defined function ?
Refer to the Optimization Toolbox User’s Guide for details about formulating an optimization problem in MATLAB: https://www.mat...

3 months ago | 0

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How to solve the "Read timed out" error when downloading MATLAB R2019a?
You can contact the MathWorks support team to help you solve this issue https://www.mathworks.com/support/contact_us/

3 months ago | 0

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Error in MATLAB-Open failed: Port: COM Port is not available. No ports are available.
When a serial port connection is opened and the device becomes unavailable, the device remains unavailable after reconnecting. T...

3 months ago | 0

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Changing magnitude to decibel in freqs plot
You can store the output of ‘freqs’ in a variable, say h. The following line of code would give you the magnitude in decibels: ...

3 months ago | 0

Answered
license centre is there a api to add users to mathworks account
You can contact the MathWorks support team to help you solve this issue https://www.mathworks.com/support/contact_us/

3 months ago | 0

Answered
matlab_doc_en_common_1566447395.enc: error while installing matlab. What should I do?
You can contact the MathWorks support team to help you solve this issue https://www.mathworks.com/support/contact_us/

3 months ago | 0

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