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struct and cell ,is there a way like dictionary in struct
You mean something like this? station = struct(... 'name', {'CD2','GYA','LZH','GOM','XAN'},... 'Jingdu',{103.76 ,106....

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Merge two cells into a single cell?
Another option: x=[2 3 4 3 5 4 4] y=[7 9 8 9 7 3 7] [xy,~,ix] = unique([x(:) y(:)],'rows') ; [~,ix2] = mode(...

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Merge two cells into a single cell?
w = 10*x + y

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need help using the rand function.
In recent versions of MatLab, randperm(N,M) randomises the numbers 1:N and takes the first M values. In older versions (like 201...

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Curve fitting to a sinusoidal function
Take a look here: <http://www.mathworks.com/matlabcentral/answers/36999-how-do-i-regression-fit-a-sinwave-to-a-dataset>

대략 12년 전 | 0

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Find mean of arrays values which is bigger than threshold
The following will return the mean across all array elements. tf = MyArray > Threshold MyMean = mean(reshape(MyArray(tf...

대략 12년 전 | 1

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For loop to count matrix elements
Why not use HISTC to count elements falling in a specific range? amount = histc(x,[0 30 80 130 150 200 Inf])

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Relating matrices through the use of indices (Matlab 2011)
Does this help you? A = [0 0 ; 10 0 ; 0 10; 10 10; 5 0; 5 10] B = [1 2 0.5; 3 4 0.5; 5 6 0.25] x1 = A(B(:,1),:) ...

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How an array with 'n' elements, and replicate each element 'm' times and then replace it in the array ?
A = [1 4 3 2] m = 3 B = kron(A, ones(1,m))

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Make num2str in engineering format
A similar effect can be obtained by manipulating the string rather than the numbers X = 52346574 ; s1 = sprintf('%.2e',...

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If else condition to determine if a year is a leap year
function Days = GetDays (Y) if isLeapYear(Y) Days = 365 ; else Days = 366 ; end Now your problem is to...

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Finding structure array entries with certain values
I assume that celldata is a structure array % create some example data for k=1:10, celldata(k).CN = ceil(4*rand) ; end...

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How do I solve for column vector from a matrix
(1) [a ; b] * [a b] = [a*a a*b ; b*a b*b] % by definition (2) [a ; b] * [a b] = [1 0 ; 1 0] % by request => b*b...

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Variable Matrix and replace values according to set criteria
<http://www.mathworks.nl/company/newsletters/articles/matrix-indexing-in-matlab.html logical indexing> will help you d = [1...

대략 12년 전 | 0

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Multiply a "stack" of matrices with a "stack" of vectors
One option: n = 6 % M is your 2x2xn array of "matrices M = rand(2,2,n) % V is your 2xn array of "vectors" V =...

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How to import one column from txt file
Take a look at at one of the import functions (textscan, load, etc.) The easiest way is to import all the columns and then on...

대략 12년 전 | 1

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building a diagonal matrix from another matrix!
A = 1:5 ; B_sparse = spdiags(A(:),0,numel(A),numel(A)) B_full = diag(A) isequal(full(B_sparse),B_full)

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How to know if a string is a valid matlab function ?
FYI, I just upload my function *ISFUNCTION* to the File Exchange: <http://www.mathworks.nl/matlabcentral/fileexchange/45778-i...

대략 12년 전 | 0

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Identify and build a list of unique combinations found in filenames using regexp?
Regexp is nice but also a little cumbersome. Here is an alternative approach: Files = {'L14N_2009_2000MHZ.txt' ; ...

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Problem with num2str, complex?
clear all i i = 1 ; i *Tip* : avoid using i as a iterator …

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Why is there an error? Unbalanced or unexpected parenthesis or bracket.
sqrt(2) and sort(28) are not a valid variable name replace sqrt(2) and sqrt(28) every with A and B function golden (A,B)...

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How to convert string to numeric variable in if statement
AllTeams = {'A1','B1','C1','C2','C3'} % all the teams Team = {'A1','B1','C1','A1','C3','A1','unknown','C1'} % Team{k} is t...

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replace the elements of a vector with an element sequence
% values V(k) in B should be mapped to row A(k,:) A = [0 1 0 0;1 0 0 1;0 0 0 1] V = [-1 -0.5 -0.25] B = [-1 -0.5...

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Using a vector of indices to add values to a matrix
<http://www.mathworks.nl/help/matlab/ref/accumarray.html ACCUMARRAY> is, by far, the easiest approach: N = [1 2 7 ; 1 2 4 ;...

대략 12년 전 | 0

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how to repeat specific rows?
Something like this? C = {'hello' ; rand(2,3) ; 1:5, 6} ix = [1 1 2 3 3 3 4] C = C(ix)

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Create variable with probability it is within a range of value
Take a look at my function *RANDINTERVAL*. The statement: X = floor(randinterval([N,1],[1 6 11 101],[5 5 90])) This wil...

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how to initialize a vector of structure
As Mischa pointed out: preallocation of structures is easy: S(1:5) = struct('a',zeros(10,1),'b','empty')

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NaN after applying filtfilt
This means that Data itself has at least one NaN in it. You could remove it, or replace it using, for instance, _interp1_ . Ther...

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LOGICALEXPAND
expand (or shrink) series in a logical vector (v2.0, feb 2014)

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HEX2RGB
Convert hexadecimal color strings to RGB values (v1.0, feb 2014)

대략 12년 전 | 다운로드 수: 3 |

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