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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...
約8年 前 | 1
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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{:})
約8年 前 | 0
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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...
約8年 前 | 0
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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年以上 前 | 0
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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年以上 前 | 1
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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年以上 前 | 1
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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年以上 前 | 0
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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年以上 前 | 0
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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年以上 前 | 0
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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年以上 前 | 0
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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年以上 前 | 1
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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年以上 前 | 0
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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年以上 前 | 1
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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年以上 前 | 0
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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年以上 前 | 0
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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年以上 前 | 2
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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年以上 前 | 0
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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年以上 前 | 0
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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年以上 前 | 0
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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年以上 前 | 0
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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年以上 前 | 1
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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年以上 前 | 0
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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年以上 前 | 0
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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年以上 前 | 1
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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年以上 前 | 3