# SM

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**Content Feed**

Question

Why trust-region-reflective algorithm in fmincon require a gradient as input?

Hello According to Matlab fmincon documentation, the 'trust-region-reflective' algorithm needs to specify the objective gradien...

6 months ago | 3 answers | 2

### 3

answersQuestion

Calculating the Hessian matrix using lsqnonlin

Hello I am optimising a multiobjective function using the lsqnonlin function with the trust-region reflective algorithm. I was...

6 months ago | 1 answer | 0

### 1

answerQuestion

Matlab "trainNetwork" error Predictors and responses must have the same number of observations

Hi I am using one of matlab dataset, (transmissionCasingData.csv), to use 1D convolution layer to train a network. Eventhough, ...

7 months ago | 1 answer | 0

### 1

answerCross -validation implemented in the the nprtool

Hi, I think nprtool default cross-validation techniuqe is "hold out". It seems that for k-fold cross validation you should exp...

7 months ago | 0

Question

Calculation of Hessian matrix in gamultiobj hybrid function

I am trying to optimise set of parameters, I am planning to use gamultiobj hybrid function for optimisation. I am wondering how...

11 months ago | 1 answer | 0

### 1

answerQuestion

gamultiobj n by m fitness function evaluation

Hello I am trying to optimise 120 parameters using gamultiobj function. My fitness function output is a matrix with 300 by 88 ...

1 year ago | 1 answer | 0

### 1

answerQuestion

Measuring the Hessian matrix for lsqnonlin

Hello I am optimising a multiobjective function using the lsqnonlin function with the trust-region reflective algorithm. I was...

1 year ago | 0 answers | 0

### 0

answersQuestion

Compare two Fourier series to depict the signal smoothness

Hello I have several signals, that I am trying to find a metric to compare the signal smoothness. By signal smoothness I mean...

1 year ago | 1 answer | 0

### 1

answerQuestion

Optimising a multivariable-multiobjective function with known the best objective values

Hello I have a displacement error function with two coefficients as input ( coefficients are the parameters that need to be opt...

1 year ago | 1 answer | 0

### 1

answerQuestion

Skip the optimised parameters result if the objective function fails

Hi I am using matlab "isqnonlin" and "gamultiobj" (in two different codes) in matlab to optimise six parameters. My objective ...

1 year ago | 1 answer | 0

### 1

answerSignal labeller doe not import table type data

I managed to solve the problem. Apparently when the data type is roi and the written file is in table format, it becomes read-o...

1 year ago | 0

| accepted

Question

Signal labeller doe not import table type data

Hi I have a data with class of "labeledSignalSet" named "lss", that the "label" field of it already includes two table data and...

1 year ago | 1 answer | 0

### 1

answerQuestion

Optimize the constant by minimizing the error whit no direct relation

I want to find the optimised value for the three constant C1, C2, C3 by minimising the error of ErFEM. I run an ABAQUS job; in...

1 year ago | 0 answers | 0

### 0

answersImport large CSV file

Thank you everyone It seems there was a malfunction in microsoft excel. It resolved spontaneously.

1 year ago | 0

Question

Import large CSV file

Hello I have a CSV file that has 239615 rows and 24 columns with 85 Mb size. the first row is headers and the rest of it are n...

1 year ago | 1 answer | 0

### 1

answerQuestion

Convert c++ file to mexa

Hi I have got some cpp files, and I need to convert them to mexa files for linux. Can enyone help me with it? I could not ma...

2 years ago | 1 answer | 0

### 1

answerQuestion

Partial least-squares regression evalutaion

Hi I am new to PLSR and I went throguh several literature that indicate the eqution of Y=BX+E as the PLSR eqution. I am trying...

2 years ago | 1 answer | 0

### 1

answerQuestion

Scatter3D with gray scale color

Hello I have four matrixes of X, Y, Z and C, that the X, Y, and Z are coordinates and the C is the colour intensity (coordinate...

4 years ago | 1 answer | 0

### 1

answerQuestion

How to make findobj to check a specific time span

Hello Every one, I want to use findobj in a loop and I want it to detect only a unique segment of the figure within the time wi...

4 years ago | 1 answer | 0

### 1

answerQuestion

Plot several sets of data with the same X data but various Y data on the same figure with new Y origin

Hi every body I want to plot sets of data that each of them have different Y but same X, I want to that matlab start plot each ...

5 years ago | 1 answer | 0