How to preallocate an array of class in MATLAB?

Posted by Kamran Bigdely Shamloo on Stack Overflow See other posts from Stack Overflow or by Kamran Bigdely Shamloo
Published on 2010-03-24T18:33:42Z Indexed on 2010/03/24 18:43 UTC
Read the original article Hit count: 264

Filed under:

matlab

|

oop

I have an array of objects in MATLAB and I've called their constructors in a loop:

antsNumber  = 5;
for counter = 1: antsNumber
    ant(counter) = TAnt(source, target);
end

MATLAB warns me to use preallocation to speed up the process. I do know the benefits of preallocation but I don't know how to do that for objects.

© Stack Overflow or respective owner

Related posts about matlab

Importing matlab functions in matlab

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I have some Matlab functions defined in .m files and I'd like to import them into Matlab (as in I'd like them to form part of the commands). Is this possible please and how can I do this? Thank you very much and regards, Krt_Malta >>> More
c# with matlab dll should be running on pc without matlab

as seen on Stack Overflow - Search for 'Stack Overflow'
hi, i have a very big problem. ich wrote a programm which is using a matlab dll. i build some classes with the matlab .net builder. it runs on my pc :) the problem is, i want to use ist on a pc without matlab. so i installed mcr, but it dont run :( what are the steps i should do? the system variable… >>> More
Matlab and .NET Interaction

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi All! I'm having an issue interacting between Matlab and .NET. I've managed to call .NET methods from Matlab code and vice versa. However, if I call a .NET method that, in turn, instantiates a Matlab object, it crashes (with a type initialization exception). Think about this scenario: a .NET… >>> More
Matlab matrix replacement assignment gives error

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, when i tried to update some part of a matrix, i got the following error message: ??? Assignment has fewer non-singleton rhs dimensions than non-singleton subscripts My code tries to update some values of a matrix that represent a binary image. My code is as follows: outImage(3:5,2:4,1) =… >>> More
MATLAB matrix replacement assignment gives error

as seen on Stack Overflow - Search for 'Stack Overflow'
I tried to update some part of a matrix, I got the following error message: ??? Assignment has fewer non-singleton rhs dimensions than non-singleton subscripts My code tries to update some values of a matrix that represent a binary image. My code is as follows: outImage(3:5,2:4,1) = max(imBinary(3:5… >>> More

Related posts about oop

php variable scope in oop

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I wonder if anyone can help out here, I'm trying to understand how use an objects properties across multiple non class pages,but I can't seem to be able to get my head around everything i have tried so far. For example a class called person; class person { static $name; } but i have… >>> More
Some solid OOP criticism?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi! I want to ask you to provide me with some articles (maybe books), which you possibly have found very convincing criticising the OOP methodology. I have read some in the WWW on this topic and I didn't really find a 'definitive demotivator'. It's not much about my personal attitude to the OOP… >>> More
How can i handle a form submit using REAL OOP in PHP

as seen on Stack Overflow - Search for 'Stack Overflow'
Im used to java and creating UML.. and i was wondering how can PHP be OOP, the objects live only until you make a request.. then they destroy, so if im using a database is useless to create a class and add the members (variables) to the class, they will be useless.. i cant pass the main system object… >>> More
I dont understand Access modifiers in OOP (JAVA)

as seen on Stack Overflow - Search for 'Stack Overflow'
I know this is a silly question but i don't understand Access Modifiers in OOP. Why do we make for example in JAVA instance variables private and then use public getter and setter methods to access them? I mean whats the reasoning/logic behind this? You still get to the instance variable but why use… >>> More
Do you need a good background in OOP before moving to frameworks?

as seen on Stack Overflow - Search for 'Stack Overflow'
Frameworks being all OOP, would it not be wise to go into frameworks without having a solid background in OOP? I can write basic classes but nothing too fancy or abstract. How much should I know of OOP before moving to frameworks? Right now I am PHP Object-Oriented Programming to learn OOP. >>> More