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Awarded to Mustafa Al-Nasser on 31 Mar 2021
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Question
How to use PRBS signal to identify first order transfer parameters
Dear All; one of the common way to identify process model parameters is use to step test which is easy way to do but how can ca...
8 mois il y a | 1 réponse | 0
1
réponseQuestion
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 ...
plus d'un an il y a | 1 réponse | 0
1
réponseQuestion
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 ...
plus d'un an il y a | 1 réponse | 0
1
réponseQuestion
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 ...
plus d'un an il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 2 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 2 ans il y a | 1 réponse | 0
1
réponseQuestion
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
plus de 2 ans il y a | 1 réponse | 0
0
réponseQuestion
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
environ 3 ans il y a | 2 réponses | 0
2
réponsesQuestion
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?
environ 3 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
environ 3 ans il y a | 1 réponse | 0
0
réponseQuestion
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...
environ 3 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
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 . ...
plus de 3 ans il y a | 1 réponse | 0
0
réponseQuestion
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...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 3 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
presque 4 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
presque 4 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
presque 4 ans il y a | 1 réponse | 0
0
réponseQuestion
neural network auto hyper parameters optimization
Dear All; How can auto tune the hyperparameters of neural network used for classfication Best Regards;
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 4 ans il y a | 2 réponses | 0
2
réponsesQuestion
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...
plus de 4 ans il y a | 1 réponse | 0
0
réponseQuestion
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...
plus de 4 ans il y a | 1 réponse | 0
0
réponseQuestion
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 ...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
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 ...
plus de 4 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
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...
environ 5 ans il y a | 1 réponse | 0
0
réponseQuestion
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,...
environ 5 ans il y a | 1 réponse | 0
1
réponse
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