Beantwortet
PC Reccomendations for MATLAB
Use an Amazon EC2 cloud machine. It will be upgraded regularly and you can later use the distributed computing toolbox to spread...

mehr als 12 Jahre vor | 0

Beantwortet
how to solve Coupled equations including ODE and algebraic equations?
Well, the error says it all, you don't define EVI in the function trial.m, it's not passed in as a variable anywhere, and its no...

mehr als 12 Jahre vor | 0

| akzeptiert

Beantwortet
Slow Matlab startup if startup.m contains many path additions
build the path yourself and do a single call to addpath, addpath expects a single string containing path names separated by semi...

mehr als 12 Jahre vor | 0

| akzeptiert

Frage


Is there any workaround for the slow performance of path.m?
I use Matlab on multiple machines and generally do not have write access to the directory where the path is saved (i.e. I cannot...

mehr als 12 Jahre vor | 1 Antwort | 2

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Frage


How to get simulink library and block names for the add_block function?
Hello, I would like to create a Simulink model programatically, using commands such as add_block etc. However, I'm having tro...

mehr als 12 Jahre vor | 1 Antwort | 0

1

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Frage


Best way to determine if number is triangular number?
Hello, I would like to test if an integer is a triangular number, and am wondering what the best way to achieve this is. I am...

mehr als 12 Jahre vor | 3 Antworten | 0

3

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Beantwortet
Using simulink as fitness function for GA
I think this might help you: http://stackoverflow.com/questions/5140013/executing-simulink-model-by-m-file-and-retrieving-the...

mehr als 12 Jahre vor | 0

Beantwortet
GA (genetic algorithm) moves away from better values
But only the mean gets worse, the best improves with every generation, and this is all that matters surely? Random combinatio...

mehr als 12 Jahre vor | 0

Beantwortet
Image processing in MATLAB/OpenCV
There is also a mex interface to opencv which may offer the best compromise, as the actual opencv processing is still done in na...

mehr als 12 Jahre vor | 0

Beantwortet
Calibrating VIX option data to model - lsqnonlin problem
lsqnonlin does not know that myfun takes 4 arguments, it expects it to just take one. You can get around this using an 'anonymou...

mehr als 12 Jahre vor | 0

| akzeptiert

Beantwortet
large sparse matrices fail with accumarray
I'm not sure how your two statements here are equivalent? a = sparse(1e6, 1e6); creates a sparse matrix of all zeros of ...

mehr als 12 Jahre vor | 0

Gesendet


samesize
Determine if all inputs are the same size in all dimensions.

fast 13 Jahre vor | 3 Downloads |

Frage


How to compile a library for linking with a mexfunction?
I have a C++ program which I am constructing a mex interface for. This program's source code files are contained in a single fol...

fast 13 Jahre vor | 1 Antwort | 0

1

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Frage


What is the most memory efficient way to return large arrays in a C structure from a Matlab C mex function?
I have a program which creates a C structure which contains large arrays of various basic data types (ints doubles etc.). What i...

fast 13 Jahre vor | 1 Antwort | 0

1

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Beantwortet
How to call MATLAB in my VB GUI
You will probably require the <http://www.mathworks.co.uk/products/netbuilder/ Matlab .NET Builder NE> to do this easily. Consid...

fast 13 Jahre vor | 0

Gesendet


odesplit
Splits evaluation of a system of differential equations into chunks to avoid out of memory errors

etwa 13 Jahre vor | 1 Download |

Frage


C++ Mex file crashes matlab on 64bit linux, but not 32 bit windows, but program runs fine outside Matlab
*warning: the code I provide in this question may crash your machine* I have written a mex gateway function to a C++ class. If ...

etwa 13 Jahre vor | 2 Antworten | 0

2

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Beantwortet
How to remove accidentally created radiobutton Callback function?
ok, I solved the problem by creating a duplicate of the original radiobutton, deleting the original, then renaming the new radio...

mehr als 13 Jahre vor | 0

| akzeptiert

Frage


How to remove accidentally created radiobutton Callback function?
I have a gui I've been working on which has a button group with two radiobuttons. Obviously these call the SelectionChangeFcn wh...

mehr als 13 Jahre vor | 1 Antwort | 0

1

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Beantwortet
Curve fitting to data sets with multiple parameters
use polyfitn from the file exchange http://www.mathworks.com/matlabcentral/fileexchange/10065-polyfitn

mehr als 13 Jahre vor | 0

Frage


Are there any speed/memory implications for using "always dbstop on error"?
I often find it handy to use the "Always dbstop on error" option for the debugger, but am wondering if there is any drawback in ...

fast 14 Jahre vor | 1 Antwort | 1

1

Antwort

Beantwortet
4D interpolation
you could fit a 4D polynomial to the data using polyfitn from the file exchange (<http://www.mathworks.com/matlabcentral/fileexc...

fast 14 Jahre vor | 0

| akzeptiert

Frage


Numerically calculating derivatives in the ODE solvers using the matlab time step size, is it a good idea, and if it's ok what is the best way to do it?
Hello, I am thinking of creating a system of differential equations to be solved using the Matlab ode solvers, the right hand...

fast 14 Jahre vor | 0 Antworten | 0

0

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Beantwortet
Matlab with dual core uses only 50% cpu (R2010b, Intel Core 2 duo T9300)
Have a look at the multicore package on the file exchange to speed up computation using multiple cores. <http://www.mathwork...

fast 14 Jahre vor | 0

Beantwortet
MATLAB vs. Excel: Matlab seems to give better answer to exponential decay, anyone know why?
You should _never_ use Excel for anything more complicated than accounting, as this only requires a precision of 2 decimal place...

fast 14 Jahre vor | 0

Frage


A better way to change the name of a structure field?
Hello, I would like to change the name of a structure field at run time. Specifically, I want to change all the names to upper...

fast 14 Jahre vor | 1 Antwort | 0

1

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Gesendet


randMat
Generate random numbers uniformally in a given range or matching a given normal distribution

mehr als 15 Jahre vor | 2 Downloads |

Gesendet


Goodness of Fit (Modified)
Computes goodness of fit for regression model given matrix/vector of target and output values.

mehr als 15 Jahre vor | 4 Downloads |