Answered
How to genneral a repeat array
For users |MATLAB R2014b| and older out = reshape(repmat(a(:)',3,1),[],1)'; or out = kron(a,ones(1,3));

9 years ago | 0

Answered
How do you make a matrix of months??
de = [727563 727564 727565 727566 727569 727570 727571 727572 727626 727627 727628 ...

9 years ago | 0

Answered
Matlab delete's value's from array
k = [1 20 3 0 NaN 19 2 1.1 NaN 20 1 0.9 NaN 19 2 0.4 0 18 0 0.3 1 19 1 ...

9 years ago | 0

Answered
How to automatically get values from nx1 struct
b = [a.Centroid];

9 years ago | 1

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Answered
How to make a polynomial with negative power?
z = roots([.9, -2.2, 2.2]) % here your polynomial 0.9*x^2 - 2.2*x + 2.2

9 years ago | 0

Answered
Is there a way to change a vector range by condition?
x=(-10:10)'; z = x(5:15); z(z>0) = 100; x(5:15) = z; or x=(-10:10)'; b = false(size(x)); b(5:15...

9 years ago | 1

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Answered
How to create a random matrix 8x8 with 2 decimals
x = round(a,2);

9 years ago | 0

Answered
Can someone help me with my code? Topic: integration
out = trapz(V); or out = sum(V) - sum(V([1,end]))/2; or S = cumtrapz(V); or S = [0,cumsum(sum([V(1:en...

9 years ago | 0

Answered
Trying to make a "snake" matrix?
N=5; M=9; T = reshape(1:N*M,N,[]); T(:,2:2:end) = T(end:-1:1,2:2:end); or T = reshape(1:N*M,M,[])'; T(2:2:...

9 years ago | 0

Answered
How would the simpliest way to do this be?
A = {CityToCityRoadData.startAddress}; B = {CityToCityRoadData.endAddress}; C = [A(:);B(:)]; a = unique(C); [lo1,i...

10 years ago | 0

Answered
i have a vector x=[1 2 3 1 4 4.3 3 3.7 4.8],consider a variable k=4:0.2:5, how many values of x are greater than k(i.e) so the output will show [2 1 1 0 0]
sum(x(:) > k(:)') % in r2016b

10 years ago | 1

Answered
Averaging the 3D-array
B = mat2cell(A,[2,2],[2,2],[2,2]); out = zeros(size(B)); for ii = 1:numel(out) [a,~,c] = unique(B{ii}(:)); jj = ...

10 years ago | 0

Answered
I need a program to check prime numbers
out = n((n(:) == 2 | rem(n(:),2)) ... & any(rem(n(:)./([2,3:2:sqrt(max(n))]),1) ~= 0,2)); use ...

10 years ago | 2

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Answered
Given a matrix A = [2 5 7; 4 1 8], write a for loop that will replace all the even numbers with 0.
A(rem(A,2)==0)=0; or with loop for ii = 1:numel(A) if rem(A(ii),2) == 0 A(ii) == 0; end ...

10 years ago | 0

Answered
How to get the total count of non zero&non NaN elements by column
a =[1 0 nan 0 nan 2 0 1 0 nan 4 6 3 0 nan] out = sum(~isnan(a) & a ~= 0);

10 years ago | 1

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Answered
How to make this complicated array
x=5; y=8; n = 1:(x+y-2); a = zeros(x,y); a([1:x,2*x:x:x*y-x]) = n; out = a + rot90((a + n(end)).*(a > 0),2)...

10 years ago | 0

Answered
Leaping loop with constant rows for each identity
A - your array (n x 1) out = conv2(A,ones(12,1)/12,'valid');

10 years ago | 0

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Answered
For Loop and final output matrix
Variant: function [CrU,AgrCarbonSimu,MN,MN1,MSA1, MSA2, MSA3]... = CarbonProject(X...

10 years ago | 0

Answered
how to count number of repeating's in data series.
A=[22 24 24 36 36 36 48 48 48 48 24 33 22 22]; V = A(:); [~,~,c] = unique(V); t = diff([0;c])~= 0; ix = cumsum...

10 years ago | 2

Answered
How to update a value in different raw after performing validity check at one raw?
file(2:end,3) = cellfun(@(x)sprintf('%d',numel(x)),file(2:end,2),'un',0)

10 years ago | 0

Answered
Copy certain number from one matrix to another
out = A(:,[1,2,2]); s = regionprops(bwlabel(A(:,2)-1),'PixelIdxList'); ii = {s.PixelIdxList}; jj = cellfun(@(ii)sort(...

10 years ago | 0

Solved

Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

10 years ago

Answered
For Loop-Specific Dates
dte = datenum(2015,1,(1:sum(yeardays(2002:2015)))'); [~,~,dv] = datevec(dte); t = dv == 1; ii = cumsum([t(2:end);0]);...

10 years ago | 1

Solved

03 - Matrix Variables 4
Make the following variable: <<http://samle.dk/STTBDP/Assignment1_3d.png>> A 3x4 NaN (Not a Number) matrix (Hint: use ...

10 years ago

Solved

03 - Matrix Variables 3
Make the following variable: <<http://samle.dk/STTBDP/Assignment1_3c.png>> A 10x10 matrix where the numbers from 1 to 100 ...

10 years ago

Answered
Explicitly Multiplication of Matrices using For Loops
s1 = size(A); s2 = size(B,2); out=zeros(s1(1),s2); for ii = 1:s1(1) for jj = 1:s2 p=0; for k = 1:s1(2)...

10 years ago | 3

Answered
how to create n*n upper triangular matrix with conditions? (image attached)
n = 4; [ii,jj] = ndgrid(1:n); out = (ii == jj) - (ii < jj); or n = 4; out = eye(n) - triu(ones(n),1);

10 years ago | 5

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Answered
Is there a Change in Conforming matrix operations?
Yes. Please read <http://se.mathworks.com/help/matlab/matlab_prog/compatible-array-sizes-for-basic-operations.html about it>.

10 years ago | 1

Answered
How to extract vertices from a matrix.
A = [... 4 5 6 10 11 12 22 23 24 36 37 38] B = reshape([A.'...

10 years ago | 0

Answered
How to convert char into double?
with str2double out = str2double(regexp(val,'\d*','match'))

10 years ago | 4