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Question
Finding the index of spesific element in a matrix?
Lets say we have matrix: a=[ 2, 3, 5 3, 4, 7 4, 4, 4] ; I want to know index of a(4) which is the bold 3. Th...
presque 5 ans il y a | 2 réponses | 0
2
réponsesQuestion
How to find out whether there is a repetitive element in the columns of a matrix?
example: a=[ 1 2 3 4 2 1 1 4 2] Bold ones are that what I am looking for. There is no need for imformation abou...
presque 5 ans il y a | 2 réponses | 0
2
réponsesQuestion
Does using cells cause dramatically slow down the code?
Does using cells instead of matrixes make big difference?
presque 5 ans il y a | 1 réponse | 0
1
réponseQuestion
Couldn't find what's wrong
a=cell(1,3) a{2}= [2 4 5] for i=1:3 if numel(a{i})==3 b=cellfun(@(q) q==a(i),a,'un',1) end end I trie...
environ 5 ans il y a | 1 réponse | 0
1
réponseQuestion
What does 'un' mean here ?
[a1,b,c] = unique(cellfun(@char,a,'un',0)) I read the cellfun page but didn't find anything about this.
environ 5 ans il y a | 1 réponse | 1
1
réponseQuestion
How to use 'setdiff' func. on cells
a and b are cells and I want to do this: setdiff(a,b);
environ 5 ans il y a | 1 réponse | 0
1
réponseQuestion
Is there a way to start indexing with 0 in MATLAB?
a=[4 2 5 2] can I make this happen? a(0)=4
environ 5 ans il y a | 3 réponses | 0
3
réponsesQuestion
Why is this not working? And how to fix?
When i run this code, I get an error message about x1. syms x1 x2 c1 c2 c3 eq1= c1-c3==0; eq2= c2-c3==0; eq3= c1+c2+c3==1; ...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
How to store vectores which have different lengts? (in a loop)
This doesnt work because every tupple have differents lengths : for i=2:5 ar(i,:)=ones(1,q(i)-q(i-1)+2); end q is a...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
How to say this in MATLAB language?
I want to say a plus b equals to 10 math exuation: a+b=10 how write this in matlab?
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
Pattern search algorithm inMATLAB ?
Can i use this Matlab function: x = patternsearch(fun,x0,A,b,Aeq,beq,lb,ub) to solve something like this:
plus de 5 ans il y a | 1 réponse | 0
0
réponseQuestion
Where is the zero?
How to find the location of a zero (or a different number) in a vector ? like : a=[ 1 3 5 6 34 4 0 1 3 4 50] =...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
How to write a fucntion which we don't know how many "in" values will be needed?
I want to know how to write first line of a function which we cant tell how many variables will be "inputed". example : f...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
How to do division on matrices ?
[a b; c d]*[x;y]=[k;l] How can i calculate x and y if I know a,b,c,d and k,l ?
plus de 5 ans il y a | 2 réponses | 0
2
réponsesQuestion
Extracting zeros from vectors
I need to extract zeros from a vector while keeping the same order of elements in s. Like this : S=[1 0 0 2 3 0 0 0 2 1 0...
plus de 5 ans il y a | 2 réponses | 0
2
réponsesQuestion
Could someone explain how this code works?
S=[1 3 0 2 0 0]; C=[0 2]; [~,col] = ismember(C,S); S(col) = []; S = 1 3 0 0 This code i...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
How to find if a vector has a repetitive element or not? And its repetition number
For example A=[ 1 3 1 1 2 3 5]
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
"setdiff" comand usage ?
when i run this code: a=[1 1 2]; b=[1]; setdiff(a,b) i get this: >> c ans = ...
plus de 5 ans il y a | 2 réponses | 0
2
réponsesQuestion
Replacing 2 elements with each other randomly?
Like : a=[2 4 5 242 24] ------> a'=[2 242 5 4 24] my code is : rndm= myset(randperm(length(myset),2)) neighbor...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
How to pick randomly elements from a vector without repetation?
If I have a vector like this : a=[1 2 3 4 5] i know how to do this but my vector is something like: a=[23 46 4 2 5] ...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
How can i explain this to matlab?
if a is not an empty vector/cluster then do 'this'
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
Storing vectors in a cluster?
for i=2:10 a=... end I want to store matrixes as an element of a set for every cycle. I know they can be stored i...
plus de 5 ans il y a | 2 réponses | 0
2
réponsesQuestion
How to modify this code for true result?
The objective is to place some boxes into rooms. Each box has its own volume (given in the 'boxes' matrix) and rooms capacities ...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
Why i get the out of bound error in this code?
myset=[1 2 3 4 6]; capacity=6; passedall=[] passed=[] for q = 1:5 q=q+1 capacity=6; passedall...
plus de 5 ans il y a | 1 réponse | 0
1
réponseQuestion
how to create a matrix which is difference (like in sets) of antoher 2 matrix
example: a=[2 3 4] b=[3] How to create matrix C which is: c=[2 4]
plus de 5 ans il y a | 1 réponse | 0