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Question
Matlab 2010 ARMA model
I have Matlab 2010 running on my work machine. I can see functions to fit AR model. (1) Is there any function or package to ...
plus de 10 ans il y a | 1 réponse | 0
1
réponseQuestion
Correlation based on binary events
I have a system with 5 components. Every 10 seconds the signal travels to all of them and I know how many of them responded. I n...
environ 11 ans il y a | 1 réponse | 0
1
réponseQuestion
Extracting variables from a struct array with many empty structs
I have a giant struct array and many of which are empty. struct array with fields: f1, f2, f3. i.e. Struct Array: StAr(i,j) ...
plus de 11 ans il y a | 1 réponse | 0
1
réponseQuestion
Searching and Manipulating Cell Array - Part 2
This is a new problem but the problem data is similar. I have a cell array A: [3,2] [2,4] [4,5] [2,5] [6] a...
plus de 11 ans il y a | 1 réponse | 0
1
réponseQuestion
Searching and Manipulating Cell Array
I have a cell array A: [3,2] [2,4] [4,5] [2,5] [6] and cell array B: [2,3,4] [2,5] [4,5,6] In the ...
plus de 11 ans il y a | 1 réponse | 0
1
réponseQuestion
Accessing values from struct array
I have a giant struct array with fields: f1, f2, f3. i.e. Struct Array: StAr(i) has StAr(i).f1, StAr(i).f2,StAr(i).f3. But I wan...
plus de 11 ans il y a | 2 réponses | 0
2
réponsesQuestion
Finding rows in a matrix
I have a matrix A = [1 2; 2 1; 1 2; 2 2; 1 1; 2 2] I want to count how many times the row [1 2] appears in above matri...
plus de 11 ans il y a | 3 réponses | 0
3
réponsesQuestion
Loss Function and FPE in ARMAX
Hi, So, what does loss function and FPE in ARMAX mean. Also, for an AR(3) model how do I get the variance of white noise? ...
plus de 12 ans il y a | 1 réponse | 0
0
réponseQuestion
gmdistribution question
Is there a way I can print NlogL after each iteration instead just at the end of convergence with obj = gmdistribution.fit(X,k) ...
plus de 12 ans il y a | 1 réponse | 0
1
réponseTile an Image using pixels
Image Analyst about 9 hours ago The word tiling threw me - it doesn't sound like tiling like I usually hear it. So you're sayin...
plus de 12 ans il y a | 0
Question
Tile an Image using pixels
This is an assignment. The prof has provided us code to tile the images in Lush but since I am working in Matlab, I need to use ...
plus de 12 ans il y a | 2 réponses | 0
2
réponsesQuestion
Reading .mat files
Please take a look at the location: http://scgroup20.ceid.upatras.gr:8000/tmg/ Under SAMPLE OUTPUT, you can download the fol...
plus de 12 ans il y a | 1 réponse | 0
1
réponseQuestion
Find in Array of Strings
how do i find the row number for 'STG' in the following array of names as: 'asf' 'poif' 'STG' 'iam' 'no'
presque 13 ans il y a | 1 réponse | 0
1
réponseQuestion
Using java.util.hashtable
This is what I have for code: sheetName='Sheet2'; [numbers, strings] = xlsread('TestSheet.xlsx', sheetName); strings(...
presque 13 ans il y a | 1 réponse | 0
0
réponseCSV vs MAT files
I am going to use the .mat files both in Matlab and R. R does have packages to load the .mat files. So, is .mat preferred or .cs...
presque 13 ans il y a | 0
Question
CSV vs MAT files
Should I store very large amount of data as .mat files or .csv. Which is more: (1) efficient when it comes to reading the data ...
presque 13 ans il y a | 4 réponses | 0
4
réponsesQuestion
Matlab Optimizer
Is there any book/site where there are examples/exercises of coplex matlab optimization problems so that I can do them myself an...
environ 13 ans il y a | 1 réponse | 0
1
réponseQuestion
Optimizer Question
This is an example of matlab optimizer: A =[-1 -2 -2; 1 2 2]; b = [0; 72]; x0 = [10; 10; 10]; [x,fval] = f...
environ 13 ans il y a | 1 réponse | 0
1
réponseQuestion
char array comparison
I have a large char array and these are dates so the array has elements as: 20070801 20070802 20070803 etc. This array s...
environ 13 ans il y a | 2 réponses | 0
2
réponsesQuestion
Different kind of normalization
I have read in Matlab that normalization of a vector is u/norm(u). However, I have a matrix (N x N)where the columns are diff...
environ 13 ans il y a | 3 réponses | 0
3
réponsesQuestion
Storing Large data in matlab files
I have a giant loop and each loop produces giant vectors. Instead of storing this vectors in a giant matrix I am thinking about ...
environ 13 ans il y a | 2 réponses | 0
2
réponsesQuestion
Simple Matlab Random Number Generation
I have to get 5 random numbers a1, a2, a3, a4, a5 where each a1, a2, a3, a4, a5 should be between [-0.5, 0.5] and sum i.e. a1 + ...
environ 13 ans il y a | 3 réponses | 0
3
réponsesQuestion
Efficient Matrix Multiplication
I have A(2000x5000). I need to perform the following: P1 = A(:,1)*A(:,1)'; for i=2:5000 P1 = P1 + AA(:,i)*...
environ 13 ans il y a | 1 réponse | 0
1
réponseQuestion
How can I read from .tar.zip without unzipping it? Part II
Okay, I will try to create the zip instead. So, my zip will contain 1.mat, 2.mat ,etc. How do I read these .mat files from the z...
environ 13 ans il y a | 1 réponse | 0
1
réponseQuestion
How can I read from .tar.zip without unzipping it?
I have about 16gb of stock data which if unzipped is more than 200gb (hd of my pc). Is there way to read the files inside this f...
environ 13 ans il y a | 1 réponse | 0
1
réponseQuestion
How do I create an array from one field of an array of structs?
I have an array of structs. Each struct has following: name (string) value (double) I want to create an array of names from na...
environ 13 ans il y a | 1 réponse | 0
1
réponse
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