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**Content Feed**

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...

1 month ago | 1 answer | 0

### 1

answerQuestion

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 ...

12 months ago | 1 answer | 0

### 1

answerQuestion

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 ...

1 year ago | 1 answer | 0

### 1

answerQuestion

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 ...

1 year ago | 1 answer | 0

### 1

answerQuestion

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...

2 years ago | 0 answers | 0

### 0

answersQuestion

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...

2 years ago | 1 answer | 0

### 1

answerQuestion

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

2 years ago | 0 answers | 0

### 0

answersQuestion

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

2 years ago | 2 answers | 0

### 2

answersQuestion

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?

2 years ago | 1 answer | 0

### 1

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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...

2 years ago | 0 answers | 0

### 0

answersQuestion

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...

2 years ago | 1 answer | 0

### 1

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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...

3 years ago | 1 answer | 0

### 1

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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 . ...

3 years ago | 0 answers | 0

### 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...

3 years ago | 1 answer | 0

### 1

answerQuestion

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...

3 years ago | 1 answer | 0

### 1

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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...

3 years ago | 1 answer | 0

### 1

answerQuestion

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...

3 years ago | 1 answer | 0

### 1

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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...

3 years ago | 1 answer | 0

### 1

answerQuestion

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...

3 years ago | 1 answer | 0

### 1

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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...

3 years ago | 0 answers | 0

### 0

answersQuestion

neural network auto hyper parameters optimization

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

4 years ago | 1 answer | 0

### 1

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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...

4 years ago | 2 answers | 0

### 2

answersQuestion

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...

4 years ago | 0 answers | 0

### 0

answersQuestion

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...

4 years ago | 0 answers | 0

### 0

answersQuestion

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 ...

4 years ago | 1 answer | 0

### 1

answerQuestion

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...

4 years ago | 1 answer | 0

### 1

answerQuestion

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 ...

4 years ago | 1 answer | 0

### 1

answerQuestion

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...

4 years ago | 1 answer | 0

### 1

answerQuestion

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...

4 years ago | 0 answers | 0

### 0

answersQuestion

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,...

4 years ago | 1 answer | 0