Question

Stop Figures Window on the progress of Global Optimization Toolbox from maximizing itself

Hi, I'm running a global optimization toolbox's simulated annealing algorithm. I enabled graphics by options = saoptimset('Di...

circa 4 anni ago | 1 answer | 0

Question

Writing a function with many outputs, and maximizing over the first output

Dear all, Hi, I want to maximize a multi-variable function myfun(x), where x is a vector over which we maximize. I'm using Gl...

circa 4 anni ago | 1 answer | 0

Question

repeat a vector with a pattern

I have a vector v=[1 2] and another vector (1 x n) k (e.g., [1 7 9]). I want to create a new vector, [v+2*k(1) v+2*k(2) ... v...

circa 4 anni ago | 1 answer | 0

Question

more efficient alternative to repeated bsxfun?

Dear all, Hi, I have bsxfun(@times,bsxfun(@minus,A,B),C) i.e., repeated bsxfun, where A is (N x L) matrix, B and C a...

circa 4 anni ago | 1 answer | 0

Question

Creating a matrix of first-order partial correlation coefficients from a correlation matrix

Dear all, I have a correlation matrix R (of a n-dimensional random vector), and I want to create matrices of first-order partia...

circa 4 anni ago | 1 answer | 0

Question

Simultaneously inverting many matrices

Dear all, I have many 2-by-2 matrices (which are covariance matrices). I want to invert them all. I'm curious if there's an eff...

circa 4 anni ago | 5 answers | 0

Question

Defining formulas for diagonal and offdiagonal elements of a matrix

I have a vector M. I want to create a matrix s.t. A(j,j) = M(j)*(1 + (M(j)-1)*roh_w) A(j,k) = M(j)*M(k)*roh_b, whenever j...

oltre 4 anni ago | 1 answer | 0

Question

Data matrix manipulation in Matlab

Hi, I have a data matrix, and each row is (t, i, row_vector), i.e., the first two elements represent time t and individual i, an...

oltre 4 anni ago | 2 answers | 0

Question

Computing many probabilities without a for loop

Hi, I have N X 2 matrix, mu, and N X 3 matrix, SIGMA, where mu(i,:) is a row vector of expectations for i-th bivariate normal di...

oltre 4 anni ago | 0 answers | 0

Answered

storing only part of the output of a function with multiple outputs

Dear Star Strider, Thank you so much; works like a charm! Best, John

storing only part of the output of a function with multiple outputs

Dear Star Strider, Thank you so much; works like a charm! Best, John

oltre 4 anni ago | 0

Question

storing only part of the output of a function with multiple outputs

Suppose you have a function with many outputs, e.g., [C,ia] = setdiff(A,B) I am only interested in ia and not C. Is there ...

oltre 4 anni ago | 2 answers | 0

Question

repeating a vector with increments

Dear Matlab Central users, Hi, I have a row vector I and I want to create a row vector [I I+n I+2*n ... I+(N-1)*n] where N>1 ...

oltre 4 anni ago | 2 answers | 0

Question

Subscript indices must either be real positive integers or logicals.???

Dear all, I have defined the following function, where E is a 2-by-1 vector, Vn 2-by-2 matrix, c, u, sig_u_sn, sig_e_sn, gbar...

circa 5 anni ago | 1 answer | 0

Question

Generating A(i,j) = [i; j]

Hi, is there a clean way to generate a matrix A(i,j) = [i; j], especially without resorting to loops? Thank you so much!

oltre 6 anni ago | 2 answers | 0