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# Mustafa Al-Nasser

Last seen: 3 dagen ago Active since 2017

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Cross Correlation lag issue
Dear Team; i am conducting cross correlation between two signals using the following code but i am alwyas get the lag at which ...

6 maanden ago | 1 answer | 0

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support vector regression - Coefficient of Determination
Dear All; how I can find Coefficient of Determination for SVR in matlab? is there any command for that ,l do i need to do it ...

8 maanden ago | 1 answer | 0

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why covariance matrix Should be positive and symmetric in mahalanobis distance
Dear All; i am trying to use mahalanobis distance in pdist command but some time i got the error that covariance matrix should ...

8 maanden ago | 1 answer | 0

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Fourier Series Fitting using Fit function
Dear All; There is a command to fit different fucntion to data , this command called "Fit" which is also used to fit data to f...

meer dan een jaar ago | 0 answers | 0

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Find Best Distribution fit for data
Dear All; is there any function in MATLAB that can find evaulate different distribution fits ? I do not know which is the best...

meer dan een jaar ago | 1 answer | 0

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Signal Fluctuation Modelling issues
Dear All; if have a long signal with a of a lot of fluctuation , what is the best way to model this signal

meer dan een jaar ago | 0 answers | 0

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find probability of chi2 test
Dear all; if i want to perfrom a hypothesis test for chi2 distrubtion , how can i do it in matlab : P(X>a)= alpha

ongeveer 2 jaar ago | 2 answers | 0

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Determine Type of noise in a signal?
Dear All; i have a signal contaminated with noise is there any way to determine the type of noise?

ongeveer 2 jaar ago | 1 answer | 0

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Power spectrum estimator -filter bank method
Dear All; I am trying to estimate the power spectrum of the attached signal but i am not getting the meaningfull spectrum as sh...

ongeveer 2 jaar ago | 0 answers | 0

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import data from mat file to simulink issue
Dear All; when i save data generated by matlab and save it in MAT file but when i load into simulink , i found it totally diffe...

ongeveer 2 jaar ago | 1 answer | 0

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How to add a trial toolbox to matlab online?
Hello everyone, i have downloaded a trial toolbox (Fuzzy logic toolbox) to my matlab, but i couldn't find it in te online ver...

meer dan 2 jaar ago | 1 answer | 0

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How to build a Stochastic Regression Model
Dear All; As you know , we usually use linear regression to build a model that describe the relationship between varaible . ...

meer dan 2 jaar ago | 0 answers | 0

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What is the type of PID controller in MATLAB, position or velocity form?
Dear All What is the type of PID controller in MATLAB, position or velocity form? how can i convert between them? Best Re...

meer dan 2 jaar ago | 1 answer | 0

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Question

PID Tuning - Velocity Form
Dear All; PID Velocity Form is more common in industry than positional form in matalb tuning tool , i could not find this opt...

meer dan 2 jaar ago | 1 answer | 0

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variable changes when reading it from user gui
Hello, I'm writing a software that needs to read some data from a code file, pass it to a user window where the user can change...

meer dan 2 jaar ago | 1 answer | 0

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fit data to distribution issue
Dear All; I am trying to fit data to a normal distribution and plot pdf but pdf plot shows several lines , i do not know why it...

meer dan 2 jaar ago | 1 answer | 0

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Question

connect matlab to azure cloud to program in parallel
Hello everone, I'm using azure cloud and I'm about to connect matlab to that. my question is it possible to connect the code...

meer dan 2 jaar ago | 1 answer | 0

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connect matlab to the cloud
Hello, I'm about to start using cloud services (mostly microsoft azure) and i was wondering if there is a way to connect matla...

meer dan 2 jaar ago | 1 answer | 0

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estimate time delay in process transfer function
Dear All; I have input and output data . I am trying to estimate a first order transfer function plus time delay. I use procest...

bijna 3 jaar ago | 0 answers | 0

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Question

neural network auto hyper parameters optimization
Dear All; How can auto tune the hyperparameters of neural network used for classfication Best Regards;

ongeveer 3 jaar ago | 1 answer | 0

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Time series prediction using LSTM
Dear All; I am trying to build an LSTM model to prodict the repsone of time series (deterministic) but the result is not good a...

meer dan 3 jaar ago | 2 answers | 0

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Prediction of increasing functions
Dear All; How can we do prediction for an increasing function (e.g. exponential) i have tried LSTM and others but it can pred...

meer dan 3 jaar ago | 0 answers | 0

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Question

NARX with multiple Inputs
Dear All; I am trying use NARX for time series prediction, the problem that i have multiple inputs and i receiving the follow...

meer dan 3 jaar ago | 0 answers | 0

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Question

Calculate miss classification percentage
Dear All; if i need to calcuate misclassification percentage for each class, usually i looked to confusion matrix but i have a ...

meer dan 3 jaar ago | 1 answer | 0

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Question

Neural Network - R value equal 1- Over-fitting or not?
Dear All; I built a neural network model for regression as shown below but I got an R value equal 0.99998 which is almost 1. D...

meer dan 3 jaar ago | 1 answer | 0

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Question

Data Partition using CVPartition_ Warning
Dear All; i am trying to use divide my data using Cvpartition with "Kfold" option in order to use for cross valdtion in neural ...

meer dan 3 jaar ago | 1 answer | 0

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cross validation in neural network using K-fold
Dear All; i am using neural network for classification but i need to use instead of holdout option , K-fold. i use cvparatitio...

meer dan 3 jaar ago | 1 answer | 0

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Question

How to insert neural network model as an objective function in pattern search
Dear All; I built a neural network model and i want to use pattern search to determine the set of input that give the optimal...

ongeveer 4 jaar ago | 0 answers | 0

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how to find the optimal inputs values of neural network that can give optimal value of predicted output
Dear All; if i built a neural network model or any other black box models to predict an output value from a set of input value,...

ongeveer 4 jaar ago | 1 answer | 0