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How do I only optimise specific input parameters to a function?
That's a fairly common requirement in optimization. You can pass the extra arguments through an anonymous function as explained...

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How to estimate VARMA (1,1)
Currently MA terms can't be estimated in a VARMAX model. You can however use the following functions VGXSIM, VGXPRED and VGXINF...

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Use prediction for concrete compressive strength is the regression problem with neural network in matlab?
Start with the examples in the documentation: http://www.mathworks.com/help/nnet/fitting-functions-and-data.html The toolb...

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how to find the covariance matix & eigen value
The 'coeff' contains the eigen vectors of the covariance matrix and 'latent' has the eigen values of the covariance matrix. you...

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Where can I find the 'start' button and drop down menu in MATLAB R2012b
There has been a UI changed since R2012a You can find all the toolbox GUIs under the Apps tab on the top which used to be und...

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Using Simpson's rule!
Maybe this is helpful to you: http://www.mathworks.com/matlabcentral/fileexchange/28726-simpsons-rule-integration

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for loop with factorial as an increment
The moment factorial is evaluated, MATLAB just treats it like a number. Which means it would be your first option.

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How does econometrics toolbox handle missing data?
Note: NaNs indicate missing values. The toolbox removes these values from Y before estimation, reducing the effective sample s...

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Finding maximum y value corresponding to same x values.
Quickest way I can think of is using accumarray: % let xy be your array A = accumarray(xy(:,1), xy(:,2), [], @max)...

plus de 13 ans il y a | 0

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How to integrate a multidimensional normal density of 6 dimensions
If you are looking to fit a distribution to your data then you can directly use the FITDIST function by specifying the distribut...

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Filter coefficient (N) in PID block?
Hi Robert, this link should give you a better idea of what N means: http://www.mathworks.com/help/simulink/slref/pidcontrolle...

plus de 13 ans il y a | 2

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c-means&k-means
k-means is part of the statistics toolbox, c-means i believe does not ship with the statistics toolbox, but as Walter mentioned ...

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Is it possible to call a function written in C in a matlab program?
MEX files. You can modify your c code to add gateway functions and call it from MATLAB. Search the doc for mex or go through:...

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How do I use a vector to evaluate a polynomial function?
You haven't show us how you are calling this function, that would give this question more clarity. In any case if you are callin...

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Volume integration under surface fitting
Bruno, quad2d performs a double integral, which must only return the surface integral over the defined surface for the limits yo...

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Evaluate f(x) for multiple evenly spaced values
x = linspace(5,20,10); % Generate 10 evenly spaced points between 5 and 20 y = f(x); % Call your function, assuming you...

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RESTOREDEFAULTPATH doesn't restore default path (rather restores user's path)
Hi Leo, Could you please forward this concern to MathWorks Technical Support via email/phone/web or Request Support button in th...

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How to solve 2 ODEs by using ODE 45
If you have a Higher Order ODE then you may have to break that down into several 1st order ODEs as shown here: http://www.mat...

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using fminsearch to optimize SVM parameters
I haven't run your code with sample data, but it is true that FMINSEARCH will always look for local minima, and the only way to ...

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How to run regression in GPU?
These are all the supported functions for GPU computing: http://www.mathworks.com/products/parallel-computing/builtin-paralle...

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As could cross validation in a neural network NarX?
You may want to use DIVIDEBLOCK instead of the default dividerand. DIVIDEBLOCK will maintain correlation since it doesn't shuff...

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Are MATLAB tech support fees charged per toolbox?
This will probably not answer your exact question but to my understanding, technical support is provided as long as you have SMS...

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I want a code for kernel PCA
MATLAB currently doesn't offer this as a part of the statistics toolbox. In the past I've used this and it worked really well f...

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How to select specific row in a matrix
A = rand(100,4); ind_logical = logical(ones(100,1)); ind_logical([1:5, 21:25, 41:45, 61:65, 81:85])=false; ...

plus de 13 ans il y a | 1

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How can I detrmine the Coefficients in ARIMA model using econometrics toolbox ?
MMU, If you just want to estimate the coefficients knowing the lag orders thats fairly straight forward, however if you want aut...

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How to provide Hessian
http://www.mathworks.com/help/optim/ug/fmincon.html#f186882 http://www.mathworks.com/help/optim/ug/constrained-nonlinear-opti...

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matlabpool not working propertly
Do you have two sessions of MATLATB that open matlab pool local? This is pose a problem. If you do then create two configurat...

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constained least squares for arma
Hi Malaka, what toolboxes do you have? Econometric Tbx? System Id Tbx? System Id has some options that support this. If you d...

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Extracting a Column from a Matrix
Example: A = rand(200,12) % 200 rows and 12 columns n = 50; % upto 50 rows m = 5; % the column you want to extr...

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How can I get the several sums by three interval of a matrix in matlab?
You don't need a loop to do that: B=load('a.txt'); sum(B(B<5)) Example: B = [1 2 8 6 4 5 9] >> sum(B(B<...

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