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Martin

Actif depuis 2013

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matlabpool open n; doesn't work.
Hi, I'd like to open matlabpool with a variable number of cores, to use the maximum number of cores available. So n would equ...

presque 10 ans il y a | 3 réponses | 0

3

réponses

Question

Choose between for and parfor.
Hi, I want to run many simulations. For this I wrote "for" loop. I used parallel computing, using parfor instead; It works we...

presque 10 ans il y a | 1 réponse | 0

1

réponse

Question

Sparse Array - Special Command?
Hi, I'm dealing with a sparse array. Given 2 arrays "col" and "val", I want to create a one-rowed sparse array of value val(i...

plus de 10 ans il y a | 1 réponse | 0

1

réponse

A répondu
Norminv in Matlab 2012
Brilliant, thanks!

plus de 10 ans il y a | 0

Question

Norminv in Matlab 2012
Hi, Is there an equivalent of norminv for Matlab 2012? It doesn't seem to work in this version. I just need the inverse of th...

plus de 10 ans il y a | 2 réponses | 0

2

réponses

Question

multiply lines of a matrix by a line
Hi, given a matrix A = (Aij) and an horizontal array b = (bj), with B and A of the same width, is there a command that retur...

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question

"XXX" requires more input arguments to run
Hi, I have this message error when I accidentally pressed F5 on a child function. This is totally normal but I can't suppres...

plus de 10 ans il y a | 11 réponses | 2

11

réponses

Question

Problem decimals operations Matlab
Hi! I have a small problem on Matlab, while adding simple decimal numbers. It turns out that a small residual number appears...

plus de 10 ans il y a | 1 réponse | 0

1

réponse

Question

First non-zeros of a sparse array
Hi, I'm searching for the fastest way to get the index of the first non zero element of a sparse array. Only nonzeros have been ...

presque 11 ans il y a | 3 réponses | 0

3

réponses

Question

Fastest way to fill in an array
Hi, I have written the following program, 3 ways to create the same array: number = 1e5; tic A = []; for i = ...

presque 11 ans il y a | 3 réponses | 3

3

réponses

Question

A few questions on memory management of sparse matrices...
Hi, I have a bit of trouble with the space used by sparse matrices. I use two ways of creating the same matrix, say P: ...

presque 11 ans il y a | 1 réponse | 0

0

réponse

Question

Decomposition in any base Matlab
Hi, I would like to know if there was a Matlab builtin function that decompose any integer in a chosen base, it would be somethi...

presque 11 ans il y a | 1 réponse | 0

1

réponse

Question

How to deal with a huge matrix?
Hi! I'm dealing with a huge matrix: to give a little context if it makes sense, it is a transition matrix of a MDP, I thus ha...

presque 11 ans il y a | 1 réponse | 0

1

réponse

Question

Preprocessor in Matlab 2013
Hi, I would like to know if there was a preprocessor in Matlab (R2013a). It would consist for example to automatically suppre...

presque 11 ans il y a | 1 réponse | 0

1

réponse

Question

Memory used vs RAM
Hi! I'm using large arrays and the "Memory used by Matlab" is slightly bigger than the RAM of my PC (4100 MB vs 3900). The p...

presque 11 ans il y a | 1 réponse | 0

1

réponse

Question

Time for Matrix Initializing
Hi! I create a cell of 700 elements, each of which is a sparse matrix 2000 * 2000 (most of the values will be zero). When I ...

presque 11 ans il y a | 1 réponse | 0

1

réponse

Question

Argmin with several minimums
Hi, I would like to find a function returning, given an array Data of doubles, an array containing all the indices of Data's ...

presque 11 ans il y a | 1 réponse | 0

1

réponse

Question

How test the presence of a toolbox
Hi! I would like in my program to test if the user has a statistical toolbox (Statistics_Toolbox). If so, it would use a prec...

presque 11 ans il y a | 2 réponses | 0

2

réponses

Question

Equivalent of beta functions
Hi! I'd like to use the Matlab functions betapdf and betacdf, but I do not have access to the statistical toolbox of Matlab. ...

presque 11 ans il y a | 3 réponses | 0

3

réponses

A répondu
Line of code instead of "ans"
Thanks for your answers.

presque 11 ans il y a | 0

Question

Line of code instead of "ans"
Hello, I begin by an example. A = [2 4]; A(1) I'd like to know if there's a setting in the Matlab Preferences which re...

presque 11 ans il y a | 3 réponses | 0

3

réponses

A répondu
Integral of the beta function
Ok that's great it works! I used a simple integration by parts and it killed dramatically the difficulties on the edge of the in...

presque 11 ans il y a | 0

Question

Integral of the beta function
Hi! I'm trying to compute the integral of the beta function, which is, up to a constant multiplier, x^(1-alpha) * (1-x)^...

presque 11 ans il y a | 2 réponses | 0

2

réponses

A répondu
Display Matrix when member of a class
Thank you! :)

presque 11 ans il y a | 0

A répondu
Looking through a Matlab Class
Ok, thank you. It seems that there is no other solution :). Another question, which may appear a bit silly : If I create a...

presque 11 ans il y a | 0

Question

Display Matrix when member of a class
Hi! I have a class containing two propoerties : InitialData is just an array, whereas Final is a 2*2 matrix. How can I ask Ma...

presque 11 ans il y a | 2 réponses | 0

2

réponses

Question

Looking through a Matlab Class
Hi! I would like to execute some actions on every object of my class, say "Island". Is there a command in Matlab allowing...

presque 11 ans il y a | 2 réponses | 0

2

réponses