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Question
How can I get elegantly an upper triangle random matrix (0 elsewhere)?
I have seen the triu and tril functions, but I can't use them to set to 0: A = rand(4); tril(A)=0; % won't work any i...
mer än 11 år ago | 1 answer | 0
1
answerQuestion
Simple calculations giving high imprecisions
I'm doing the following simple code, that aims to find a point position knowing distances in 2D but the outputs is far from t...
mer än 11 år ago | 1 answer | 0
1
answerQuestion
gaussian kernel smoothing, how to optimize parameter sigma?
Hi, my question is how to find an optimal standard deviation for the gaussian kernel filter smoothing? too large, we are lo...
mer än 11 år ago | 1 answer | 0
1
answerQuestion
Does matlab have matrix broadasting
This x=[1:3]'; x.^(1:5) would work on Octave thanks to <https://www.gnu.org/software/octave/doc/interpreter/Broadcastin...
mer än 11 år ago | 1 answer | 0
1
answerQuestion
A logical indexing for row-wise max
I'm wondering if there is anything simpler than: x = [2 3;3 1] [a,b]=max(x, [], 2); % now return the matrix containin...
mer än 11 år ago | 1 answer | 0
1
answerDefining function handles in MATLAB
> f = @(x) 2*x^3+7*x^2+x; > f(0) 0 surprising no one mentioned anonymous functions...
mer än 11 år ago | 3
