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freebil


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Last seen: 8 Monate vor |  Aktiv seit 2012

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Gaussian Mixture pdf plot
Hello. I have a gaussian with probability 0.2 and (m1,sigma1), another with probability 0.3 and (m2,sigma2) and one with probabi...

etwa 8 Jahre vor | 3 Antworten | 0

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performance analysis of LDPC code
See my blog post with matlab code <https://freebil.com/?p=40>

etwa 8 Jahre vor | 0

Beantwortet
Hi,,is there anyone who could help in implementing the DECODER of LDPC code?
See my blog post with matlab code <https://freebil.com/?p=40>

etwa 8 Jahre vor | 0

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Hi, I am trying to make a parity check matrix from non-systematic to systematic. Hence I am attaching my code below. Somewhat it is correct, but there are some problems. It would be really great if someone could help me in this. Thanks
You have to do gauss jordan elimination to convert a parity check matrix to upper triangular form. For example, H=[1 1 0 1 ...

etwa 8 Jahre vor | 0

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need help with a for loop
In the second line of the for loop, b is 3x1 and (A*x(a)) is 3x3. So, you cant sum these. For summing, they must have identical ...

etwa 8 Jahre vor | 0

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create sparse upper triangular matrix with only 1s
Hello. I want to create a sparse upper triangular with size 10^5x10^5. Is it possible? m = triu(ones(10^5); and m = ...

etwa 8 Jahre vor | 1 Antwort | 0

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Generator matrix for repetition coding
Hello. I would like to be able to make generator repetition matrices for given vectors. If I have the vector u = [1 0 0 1]...

etwa 8 Jahre vor | 1 Antwort | 0

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The variable g in a parfor cannot be classified..
Can anyone help me with this? parfor j=1:N z1r=normrnd(Z1(1),Z1(2)); %Random sample from distribution of...

fast 10 Jahre vor | 1 Antwort | 0

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I cannot install Matlab 2014a on OS X Yosemite 10.10 public beta
Try this but i dont know if it will work.. 1- find Matlab application file under Applications folder 2- Right (Control) clic...

etwa 10 Jahre vor | 0

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Osx Yosemite 10.10
Public beta of OS X yosemite is out now. I installed this and now matlab doesn't work. You can’t use this version of the app...

etwa 10 Jahre vor | 3 Antworten | 1

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create big matrix with only 0s and 1s
I want to run the following n = 10^6; m = n/2; H = sparse(m,n); parfor jj=1:n pos = sample(cumulative); H(...

fast 11 Jahre vor | 1 Antwort | 0

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problem with parfor and big sparse matrix
I have the following code but I have to run it for n>10^6. For n=10^5 the memory is over. I have 16gb. Is there any efficient wa...

fast 11 Jahre vor | 0 Antworten | 0

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convert a double array to something like logical
Hello. I want to concert every 1-> 1 0 0 0 0 0 0 2-> 0 1 0 0 0 0 0 3-> 0 0 1 0 0 0 0 4-> 0 0 0 1 0 0 0 5-> 0 0 0 ...

fast 11 Jahre vor | 3 Antworten | 0

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Floating point to fixed point
Hello. I want to convert some floating point values to fixed point with the best precision i can have for 20 bits. My range of v...

fast 11 Jahre vor | 1 Antwort | 0

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problem with parfor loop
Is it possible to parfor this? for iter=1:50 for i=1:100 x(:,i)= rand(3,1) end end

fast 11 Jahre vor | 1 Antwort | 0

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count rectangles on big matrices
Hello. I have very large sparse matrices with zero and one only and i have to count all the rectangles that there are in it. Fo...

fast 11 Jahre vor | 2 Antworten | 0

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problem with parfor loop
Thanks for your answer. Actually, the code is for edge = 1:sum(num_of_edges) var_node = edge_2_var_node(edg...

fast 11 Jahre vor | 0

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problem with parfor loop
I have the following code parfor edge = 1:1000 var_node = edge_2_var_node(edge, num_of_variable_nodes) ...

etwa 11 Jahre vor | 2 Antworten | 0

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parfor question with 40 nodes
Hello! I have a script which runs in 20 hours SNR=2:0.25:5 for i=1:length(SNR) ... for j=1:3000 ...

etwa 11 Jahre vor | 1 Antwort | 0

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Working on a grid of 40 nodes
please someone.. :)

etwa 11 Jahre vor | 0

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How to perform an array multiplication for a vector and a matrix and output results as a matrix?
I think this works: M = [1 2 3]; C = [10 11 12; 13 14 15; 16 17 18; 19 20 21; 22 23 24]; for i=1:length(C) ...

etwa 11 Jahre vor | 0

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The variable in parfor cant classified
Hello.This is my code: c_hat = zeros(n,1); vc = zeros(m,n); cv = zeros(m,n); parfor j = 1:n che...

etwa 11 Jahre vor | 1 Antwort | 0

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Working on a grid of 40 nodes
Hello. I would like to run a monte carlo simulation for snr=2:0.5:5 and 1000 iterations for every snr on my university grid.It h...

etwa 11 Jahre vor | 1 Antwort | 0

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how i can have 2 points joining with quiver
Hello.I want to make a velocity vector from a point (i,j) to a point(k,z) on an image.How i can use quiver for it? Thanks

mehr als 11 Jahre vor | 2 Antworten | 0

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