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Swetha Polemoni


Last seen: 15 jours ago

MathWorks

82 total contributions since 2020

I am Application Support Engineer at Mathworks.
Disclaimer: Any articles /ideas/opinions here are my own and no way reflect that of Mathworks

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  • Knowledgeable Level 3
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Answered
Generation of SSB signal.
Hi You may try using Simulink blocks such as Signal Generator, Second-Order Filter(Low pass filter), product(Balanced modulato...

environ 2 mois ago | 0

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Change preferences in ClassificationLearner (or other apps) ?
Hi As mentioned in this documentation parallel option is available only when you have Parallel Computing Toolbox. So to chang...

environ 2 mois ago | 0

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convert to matlab function
Hi You may find MATLAB Onramp course useful for converting your code to MATLAB function.

environ 2 mois ago | 0

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Step function in Simulink is not plotting correctly
Hi You can change the settings of step block as shown in the below figure. Step time is the time taken to jump from initial va...

environ 2 mois ago | 1

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passing parameters to python script on raspberry pi4
Hi This might help you. system(['python filedirectory/file.py parm1 parm2']);

environ 2 mois ago | 0

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To find conditions in integration
Hi It is my understanding that you want the conditions where your integral value is some constant. Following code snippet might...

environ 2 mois ago | 0

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IIR bands stop filter
Hi You can use designfilt to design filters in Matlab. Have a look at Name-Value Pair Arguments such as 'PassbandFrequency', 'S...

environ 2 mois ago | 0

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MATLAB Application Compiler/Stand Alone Application
Hi As mentioned in Standalone Applications documentation you can run MATLAB code on target machines that do not have MATLAB ins...

environ 2 mois ago | 0

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Amplitude and Phase Fourier Spectrum - SPtool/Signal Analyzer app
Hi You may find this already answered compute magnitude and phase spectrum useful to obtain spectrum.

environ 2 mois ago | 0

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Can anybody know how to use the ImageJ's FFT filter function in matlab?
Hi You can use fftfilt to serve the purpose

environ 2 mois ago | 0

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how to limit and number of points on axis or how to set desired spacing between the points
Hi You can limit the number of points on x axis/ y axis using Specify Axis Limits "xlim/ylim". For setting desired spacing on ...

environ 2 mois ago | 0

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Answered
MATLAB Importing .dat individually to be looped for a mean plot
Hi It is myunderstanding that you want to read more than one .dat file using for loop. Following code snippet might help. for...

environ 2 mois ago | 0

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Symbolic environment and loops
Hi Bruno Souza It is my understanding that you want to use loop variable j to create different symbolic variable names. Follow...

2 mois ago | 0

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impulse response of a LTI system in Matlab
Hi You can use "conv" to find convolution.

2 mois ago | 0

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Setting Matrix Values based on 'symsum' formula
Hi Michael Jacobson You cannot use symbolic variable as index to a matrix. However the following code snippet can help to get s...

2 mois ago | 0

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Extract time-amplitude signals to a matrix from a png
Hi It is my understanding that you want to get the x and y coordinates of few points from image. Read the image using imread...

2 mois ago | 0

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How to extract envelope from a sine wave signal?
Hi You can use the function "envelope" to serve the purpose. You may find the doumentation Envelope Extraction useful.

3 mois ago | 0

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Plotting Magnitude and phase of two discreate signals
Hi Chyavan Phadke You may refer to this link to blogs by Steve for understanding DFT and DTFT. You can calculate DTFT use "fft...

3 mois ago | 0

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Answered
How to use matlab Kfold or custom cvpartition so data isn't shuffled randomly?
Hi Maxwell Barton K-fold validation without random shuffling of data is not supported by Matlab This requirement has been bro...

3 mois ago | 0

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Time series cross-validation for lasso
Hi Nikolaos Vasilas K-fold validation without random shuffling of data/ time series cross-validation is not supported by Matla...

3 mois ago | 0

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How to save the criterion at which neural net training was finished?
Hi With trainbr, training occurs according to trainbr training parameters. You might find the following documentation useful. ...

3 mois ago | 0

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How can I examine the Runtime of a preallocated loop vs non preallocated?
Hi It is my understanding that you want to calculate mean of a matrix without using inbuilt function. m=10; n=10; x=randn(m,...

3 mois ago | 0

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Finding average of matrix elements within a specified window
Hi You might find this file exchange, Moving Average Filter (2D) useful.

3 mois ago | 0

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Detecting and Calculating the droplet diameter in an image with Low contrast
Hi It is my ynderstanding that you want to find the diameter of the circles/droplets in the image. You can do it using regionp...

3 mois ago | 0

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How to format the inputs and targets for a feedforward neural network?
Hi It is my understanding that you are doing classification. As it is clearly mentioned in the code x_train and y_tran are for ...

3 mois ago | 0

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How to customize a colour map so that all values of 0 are equal to gray
Hi It is my understanding that you want to customize the colormap. You may find the following documentation helpful. https://...

3 mois ago | 0

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How to tell how smooth a signal oscillates?
Hi Maximilian Valentin Schraysshuen You may find the following approach useful. Calculate the mean of the signal using "mea...

3 mois ago | 0

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Please, could someone assist me with code for wavelet analysis?
Hi Kwaku Owusu, It is my understanding that you want to use wavelet transform. You might find this documentation "Wavelet Trans...

3 mois ago | 0

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Perform elementwise substitution of vector of scalars into vector of equations.
Hi It is my understanding that you want substitute every value of t in each equation d. d = t^2/2 t^2 (3*t^...

3 mois ago | 0

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