Answered
Accessing multiple fields in nested structures for string comparison
Assuming libinfo is a scalar structure, and hence libinfo.Raithinfo is a cell array, you may benefit from using cellfun (or arra...
Accessing multiple fields in nested structures for string comparison
Assuming libinfo is a scalar structure, and hence libinfo.Raithinfo is a cell array, you may benefit from using cellfun (or arra...
8 years ago | 1
| accepted
Answered
How to create an array containing all possible combinations of 0's and 1's to length n
n = 3 c = arrayfun(@(k) mat2cell(dec2bin(0:2^k-1)-'0', ones(2^k,1), k), 1:n, 'un', 0) c = vertcat(c{:})
How to create an array containing all possible combinations of 0's and 1's to length n
n = 3 c = arrayfun(@(k) mat2cell(dec2bin(0:2^k-1)-'0', ones(2^k,1), k), 1:n, 'un', 0) c = vertcat(c{:})
8 years ago | 0
Answered
Can I use unique to reduce one row, but keep reference to how many cells it was reduced from?
You are looking for some run-length encoding scheme: A = [ 1 1.5 2 2.5 3 3.5 4 4.5 5 10 10 10 20 20 3...
Can I use unique to reduce one row, but keep reference to how many cells it was reduced from?
You are looking for some run-length encoding scheme: A = [ 1 1.5 2 2.5 3 3.5 4 4.5 5 10 10 10 20 20 3...
8 years ago | 0
Submitted
allcomb(varargin)
All combinations of input (v4.2, apr 2018)
8 years ago | 25488 downloads |
Submitted
isfunction(FUN)
returns true for valid matlab functions (v3.2, apr 2018)
8 years ago | 547 downloads |
Answered
I try to optimalize a temperature when looking at different concentrations for a chemical reaction. I get a good plot for values of k from 1 tot 70 but when going higher it won't work anymore. I don't know what to do, anyone?
You should reset t(1) to zero before the inner loop. You might not even need a vector t. Just use t = t + tstep, as you only use...
I try to optimalize a temperature when looking at different concentrations for a chemical reaction. I get a good plot for values of k from 1 tot 70 but when going higher it won't work anymore. I don't know what to do, anyone?
You should reset t(1) to zero before the inner loop. You might not even need a vector t. Just use t = t + tstep, as you only use...
8 years ago | 0
Answered
How does the for-cycle check its conditions?
You cannot change the parameters of the for-loop within the counter, as demonstrated here: a = 2 ; b = 6 ; c = 0 ; fo...
How does the for-cycle check its conditions?
You cannot change the parameters of the for-loop within the counter, as demonstrated here: a = 2 ; b = 6 ; c = 0 ; fo...
8 years ago | 1
Answered
Find length of a structure element and remove them according to length?
L = arrayfun(@(k) numel(output(k).I), 1:numel(output)) output(L > 100) = [] ; % remove those elements of the structure arra...
Find length of a structure element and remove them according to length?
L = arrayfun(@(k) numel(output(k).I), 1:numel(output)) output(L > 100) = [] ; % remove those elements of the structure arra...
8 years ago | 1
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Answered
I want to know the cell number i.e. row and column of the matrix, whichever is above 10% of the normal vlaue. and i also want to get the values in the cell.
I am unsure if I understand your question completely, but here is my 2p: X = rand(4,3) % example data TF = X > 0.1 ...
I want to know the cell number i.e. row and column of the matrix, whichever is above 10% of the normal vlaue. and i also want to get the values in the cell.
I am unsure if I understand your question completely, but here is my 2p: X = rand(4,3) % example data TF = X > 0.1 ...
8 years ago | 0
Answered
Is it possible to do this without for cycle?
% data Y = [1 1 3 2 3 1 1 2] % M = numel(Y) K = 3 % engine T = double((Y(:) - (1:K))==0)
Is it possible to do this without for cycle?
% data Y = [1 1 3 2 3 1 1 2] % M = numel(Y) K = 3 % engine T = double((Y(:) - (1:K))==0)
8 years ago | 0
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Answered
Add zeros to matrices same as length of another matrix
To pad an matrix A with zeros to match a larger or same-sized array B, you can use this: A = magic(3) B = ones(3, 5) ...
Add zeros to matrices same as length of another matrix
To pad an matrix A with zeros to match a larger or same-sized array B, you can use this: A = magic(3) B = ones(3, 5) ...
8 years ago | 0
Answered
how do I convert a cell array of different size cells to a matrix
An easy job for padcat :) c = {{1 2}; {1 2 3};{4 5 6};{10 11 12 12 14}} % rather awkward cell array of cell arrays of n...
how do I convert a cell array of different size cells to a matrix
An easy job for padcat :) c = {{1 2}; {1 2 3};{4 5 6};{10 11 12 12 14}} % rather awkward cell array of cell arrays of n...
8 years ago | 0
Answered
How to convert string to number and process underscores? (e.g. '57_77_' to 57.77)
all in one go: a = '12_23_' v = str2num(strrep(a(1:end-1), '_', '.'))
How to convert string to number and process underscores? (e.g. '57_77_' to 57.77)
all in one go: a = '12_23_' v = str2num(strrep(a(1:end-1), '_', '.'))
8 years ago | 1
Answered
hi everybody , i'm a beginner and don't know how can i convert ascii to a string
A = [51 48 56 ; 73 48 71] str = char(A) % conversion from ascii to character string
hi everybody , i'm a beginner and don't know how can i convert ascii to a string
A = [51 48 56 ; 73 48 71] str = char(A) % conversion from ascii to character string
8 years ago | 0
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Answered
find max value within set parameters of matrix
If you want to mask out elements of a vector for finding the max, without disrupting the location within the vector, you might c...
find max value within set parameters of matrix
If you want to mask out elements of a vector for finding the max, without disrupting the location within the vector, you might c...
8 years ago | 1
Answered
Array indexing for moving IQR
When N (= number of elements in A) and K (= number of elements to use) are not too large you could create an intermediate (N-K+1...
Array indexing for moving IQR
When N (= number of elements in A) and K (= number of elements to use) are not too large you could create an intermediate (N-K+1...
8 years ago | 0
Answered
Split a matrix at specific row
Use *mat2cell*: M = randi(20, 105,4) ; V = [11 12 11 11 12 12 13 11 12] ; C = mat2cell(M, V , size(M,2)) ;
Split a matrix at specific row
Use *mat2cell*: M = randi(20, 105,4) ; V = [11 12 11 11 12 12 13 11 12] ; C = mat2cell(M, V , size(M,2)) ;
8 years ago | 0
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Answered
How to find minimal distance between elements?
Without creating a possibly large intermediate N-ny-N matrix or using a possibly slow sort V = [1 8 6 4 2 10] ; W = ncho...
How to find minimal distance between elements?
Without creating a possibly large intermediate N-ny-N matrix or using a possibly slow sort V = [1 8 6 4 2 10] ; W = ncho...
8 years ago | 2
Answered
How to find minimal distance between elements?
By definition the minimum distance is zero because v(i)==v(i) for any element i of the vector v. But I assume you want the mi...
How to find minimal distance between elements?
By definition the minimum distance is zero because v(i)==v(i) for any element i of the vector v. But I assume you want the mi...
8 years ago | 0
Answered
assign values from logial vector to a new matrix with the same size
function B = functionA(A) B = A B(~(A>0)) = 0
assign values from logial vector to a new matrix with the same size
function B = functionA(A) B = A B(~(A>0)) = 0
8 years ago | 0
Answered
Compare segments of a vector
A = [2 2 2 2 2 3 6 3 4 5 1 1 1 1 1 2 3 4 5 6] AA = reshape(A,5,[]) dA = diff(AA,[],2) ix = all(dA>0) ix = 2*fin...
Compare segments of a vector
A = [2 2 2 2 2 3 6 3 4 5 1 1 1 1 1 2 3 4 5 6] AA = reshape(A,5,[]) dA = diff(AA,[],2) ix = all(dA>0) ix = 2*fin...
8 years ago | 0
Answered
Structs fields indexing issue
Parent.Child1.field_1 = [1 2 2 3] ; Parent.Child2.field_1 = [1 3 3 2 3 2] ; Parent.Child3.field_1 = [2] ; A = str...
Structs fields indexing issue
Parent.Child1.field_1 = [1 2 2 3] ; Parent.Child2.field_1 = [1 3 3 2 3 2] ; Parent.Child3.field_1 = [2] ; A = str...
8 years ago | 0
Answered
How to choose all other indices than ones I know?
Here are two options a = [11 12 13 14 15] i = [2 3] b1 = nan(size(a)) b1(i) = a(i) b2 = a i2 = setdi...
How to choose all other indices than ones I know?
Here are two options a = [11 12 13 14 15] i = [2 3] b1 = nan(size(a)) b1(i) = a(i) b2 = a i2 = setdi...
8 years ago | 1
Answered
Average distance of nonzero diagonal to the main diagonal for sparse matrix
In your example, you do not need to check the diagonals at all, just the first row and column of the matrix! A = [0 5 0 1 ...
Average distance of nonzero diagonal to the main diagonal for sparse matrix
In your example, you do not need to check the diagonals at all, just the first row and column of the matrix! A = [0 5 0 1 ...
8 years ago | 0
| accepted
Answered
Average distance of nonzero diagonal to the main diagonal for sparse matrix
Use the second argument of diag? A = sparse(cumsum(triu(ones(5)),2)) diag(A,1)
Average distance of nonzero diagonal to the main diagonal for sparse matrix
Use the second argument of diag? A = sparse(cumsum(triu(ones(5)),2)) diag(A,1)
8 years ago | 0
Answered
How to Return two Matrix of dimension (T,N)
function [G, H] = MyInput(T,N) % do not name this function input, as this is already used by ML !!! G = zeros(T,N) ; % p...
How to Return two Matrix of dimension (T,N)
function [G, H] = MyInput(T,N) % do not name this function input, as this is already used by ML !!! G = zeros(T,N) ; % p...
8 years ago | 1
| accepted
Answered
How to find sampling rate from a signal vector and a time vector?
The sampling rate is the number of samples collected per second. In most typical cases, this is (roughly) a fixed (single) value...
How to find sampling rate from a signal vector and a time vector?
The sampling rate is the number of samples collected per second. In most typical cases, this is (roughly) a fixed (single) value...
8 years ago | 3