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How to delete the duplicate number or using unique in the cell?
A={[3];[6 8 3];[5];[10 5]}; k = repelem((1:numel(A))',cellfun(@numel,A)); B = cell2mat(cellfun(@(x)x(:),A,'un',0)); [a,b] =...

約7年前 | 0

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vectorization of symmetrical matrix with off-diagonal vectors multiplied with 2
k = 2; o = ones(size(H)); Hl = H.*(tril(o,-1)*(k-1) + 1); out = Hl(tril(o)>0); or e = H.*((k-1)*(1-eye(size(H))) + 1); o...

約7年前 | 0

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How to get the corresponding logic value based on the sum of vector elements
A = [1,1,2,3,5]; my_input = 5; out = []; n = numel(A); ii = 1:n; for jj = 1:n k = nchoosek(ii,jj); r = sum(resh...

約7年前 | 0

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How to find out the impact of independents variables on dependent variable?
Let A - array of your data (365 x 5) : evapotranspiration, temperature, solar radiation, relative humidity and wind speed c = c...

約7年前 | 0

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Search all elements from from array A in array B and write it workspace
Output = A(ismember(A,B))

約7年前 | 0

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How to pick next value from vectors based on a condition?
m = 5; [value,ii] = max(A(m:end)); index = ii + m - 1;

約7年前 | 0

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Count the same element in a large rows of one column
Let A - your vector (421 x 1): [a,~,c] = unique(A); out = array2table([a, accumarray(c,1)],'v',{'value','times'});

約7年前 | 0

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how to change data from 10 minutes to hour?
In R2016b: T = readtable('data.txt','ReadVariableNames',false,'Format','%q %q %f'); TT = sortrows(timetable(T.Var3,'RowTimes',...

約7年前 | 1

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How can i find the all the positions of elements in cell and record them all in an the same cell
f = fopen('data.txt'); str = textscan(f,'%s','delimiter','\n'); fclose(f); str = regexp(str{1},'\w+','match','once'); [a,b,c] ...

約7年前 | 0

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How can i find the sorted indexing of the array
A = [2 9 6 5 8]; n = numel(A); AA = [A;1:n]; swapped = 1; while swapped swapped = 0; for ii = 1:n-1 if AA(1,ii+1...

約7年前 | 0

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how to convert num to string ?
x ={... [22] '22 .8 ' [30] '39 .6 ' [44] [48] '49 .6 ' '50 .8 '}; lo = cellf...

約7年前 | 0

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Matrix Average beside the numbers
M =[ 1 2 3 6 5 4 7 8 9]; X = conv2(M,ones(3),'same')./conv2(ones(3),ones(3),'same');

約7年前 | 0

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How can I mat2cell the array?
out = mat2cell([v{:}],1,[3,3,4,3,3]);

約7年前 | 0

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How to repeat the condition for two matrices having different sizes?
I edited the answer. out = A > B(:,:,mod(0:size(A,3)-1,size(B,3))+1);

約7年前 | 1

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How to concentrate matrices of different row length (same column length) into one matrix by unfolding each of the matrices to the smallest row length conatining numbers not nan
M = struct2cell(H); n = min(cellfun(@(x)find(all(~isnan(x),2),1,'last'),M)); M = cellfun(@(x)reshape(x(1:n,:)',1,[]),M,'un',0)...

約7年前 | 1

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How to reset the sequence number for the sequence number in vector?
In your case: [~,~,vec2] = unique(vec);

約7年前 | 3

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How to multiply each element of a matrix by another matrix
Use function kron: >> B = reshape(1:9,3,[]) B = 1 4 7 2 5 8 3 6 9 >> A = 2*[1,1;1...

約7年前 | 1

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simple code for the log computation
X = [1, 2, 3, 5, 6]; M = log10(X);

約7年前 | 1

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select rows satisfying a particular condition
% Let A - your array. [ii,jj,v] = find(A); z = [ii,jj,v]; z = sortrows(z,[1,2]); out = accumarray(z(:,1),z(:,3),[],@(x){fu...

約7年前 | 1

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How to find the given index values in a array?
in R2016b T = readtable('Sheet2.xls','ReadVariableNames',0); lo = T{:,2:end} ~= 0 & ~isnan(T{:,2:end}); [ii,~] = find(lo); o...

約7年前 | 1

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Check common elements in two vectors and remove them from both the vectors leaving any duplicate. (Example Inside)
a1 = unique([A(:);B(:)]); s = size(a1); [~,iA] = ismember(A(:),a1); [~,iB] = ismember(B(:),a1); ii = (accumarray(iA,1,s) - a...

約7年前 | 0

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Row index exceeds matrix dimensions
T = array2table(A); m = varfun(@mean,T,'GroupingVariables',1); out = A; [~,~,ii] = unique(A(:,1)); out(:,2:end) = out(:,2:en...

約7年前 | 1

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Using kron to create a large matrix
n = 11; A = [-4 2 0;1 -4 1;0 2 -4]; %main diagonal m = size(A,1); mn = m*n; o1 = ones(mn,1); out = full(spdiags([o1,repma...

約7年前 | 0

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placement of elements from a matrix into another matrix
%{ block of code by Rupsana - initial and final submatrix values and initial matrix A: %} tot_row=5; tot_col=10; left_co...

約7年前 | 1

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A command like "unique" for matrices?
A=[1;2;3]; C=[4;5;6]; M = [repmat(A,2,1);C]; out = reshape(unique(reshape(M,3,[])','rows','stable')',[],1);

約7年前 | 1

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How can i seperate a string in all possible smaller ones without using for loops;.
a = 'ATGCA'; out = cellstr(a((1:end-1)' + [0, 1]));

約7年前 | 0

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How to make faster row-wise Matrix multiplication ?
Just use: out = permute(A,[3,2,1]).*B;

約7年前 | 1

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short programs to subtracts rows from a matrix of n length
Z = squeeze(sqrt(sum((T - permute(X,[3,2,1])).^2,2)));

約7年前 | 0

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How would I put this in a for loop ?
T = 1; % Period Vm = 1; % Voltage amplitude v = {@(t)Vm*sin(4*pi*t/T); @(t)2*Vm*sin(4*pi*t...

約7年前 | 0

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How do I create a random row matrix with some fixed positions?
a = [ 11 3 14]; b = 1:20; c = setdiff(b,a); n = numel(c); out = [a, c(randperm(n))];

約7年前 | 0

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