Suspensa Vix Via Fit

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How to sum the second poation data in an array (50000x2) with the same value in the first position

Method one: accumarray: >> [U,~,G] = uniquetol(A(:,1)); >> S = accumarray(G(:),A(:,2)); >> M = [U,S] M = 2.79314 0.141...

How to sum the second poation data in an array (50000x2) with the same value in the first position

Method one: accumarray: >> [U,~,G] = uniquetol(A(:,1)); >> S = accumarray(G(:),A(:,2)); >> M = [U,S] M = 2.79314 0.141...

etwa 4 Stunden ago | 0

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Answered

read csv. convert char-array to matrix

Because MATLAB does not handle UCS-2 file I first converted your file to UTF-8 (attached). This imports all of the main matrix ...

read csv. convert char-array to matrix

Because MATLAB does not handle UCS-2 file I first converted your file to UTF-8 (attached). This imports all of the main matrix ...

etwa 7 Stunden ago | 0

Answered

Help with printing output

Instead of adding spaces manually you can set the fieldwidth: hours = [13,22,41]; x = [74.52,30.02,22.68]; y = [77.40,36.30,2...

Help with printing output

Instead of adding spaces manually you can set the fieldwidth: hours = [13,22,41]; x = [74.52,30.02,22.68]; y = [77.40,36.30,2...

ein Tag ago | 0

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Answered

Access all k-th elements of a n-dimensional array, where the k indexes are defined in a (n-1)-dimensional array.

>> S = size(A); >> [R,C,~] = ndgrid(1:S(1),1:S(2),1); >> X = sub2ind(S,R,C,idx); >> B = A(X) B = 1 11 3 13 ...

Access all k-th elements of a n-dimensional array, where the k indexes are defined in a (n-1)-dimensional array.

>> S = size(A); >> [R,C,~] = ndgrid(1:S(1),1:S(2),1); >> X = sub2ind(S,R,C,idx); >> B = A(X) B = 1 11 3 13 ...

ein Tag ago | 0

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Answered

For loop using bin2dec conversion

This is MATLAB, you don't need a for loop! Method one: mtimes: >> V = [1,1,0,1,0,0,1,0]; >> N = 2; >> X = pow2(N-1:-1:0)*res...

For loop using bin2dec conversion

This is MATLAB, you don't need a for loop! Method one: mtimes: >> V = [1,1,0,1,0,0,1,0]; >> N = 2; >> X = pow2(N-1:-1:0)*res...

4 Tage ago | 0

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Answered

Matrix Generation from Other Matrices

F = @(p)C*A^p*B; M = arrayfun(F,0:n-1,'uni',0); M = cumsum(cat(3,M{:}),3); M = reshape(permute(M,[1,3,2]),[],b); Tested: >>...

Matrix Generation from Other Matrices

F = @(p)C*A^p*B; M = arrayfun(F,0:n-1,'uni',0); M = cumsum(cat(3,M{:}),3); M = reshape(permute(M,[1,3,2]),[],b); Tested: >>...

4 Tage ago | 0

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Answered

Replacing NaN's in column of a Matrix

Where M is your matrix: X = isnan(M(:,2)); M(X,2) = 250;

Replacing NaN's in column of a Matrix

Where M is your matrix: X = isnan(M(:,2)); M(X,2) = 250;

5 Tage ago | 1

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Answered

For loop goes longer than expected.

"Can you help me what is the cause for this behaviour?" Because that is the indexing that you used. You defined the loop itera...

For loop goes longer than expected.

"Can you help me what is the cause for this behaviour?" Because that is the indexing that you used. You defined the loop itera...

5 Tage ago | 0

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Answered

Average of the nine surrounding cells

Use conv2 to calculate the averages, e.g.: out = matrix2.*conv2(matrix1,ones(3,3),'same')/9;

Average of the nine surrounding cells

Use conv2 to calculate the averages, e.g.: out = matrix2.*conv2(matrix1,ones(3,3),'same')/9;

5 Tage ago | 1

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Answered

How to separate an array into 3

>> A = [11,22,33,44,55,66,77,88,99]; >> B = A(1:2:end-1) B = 11 33 55 77 >> C = A(2:2:end-1) C = 22 44 66 88...

How to separate an array into 3

>> A = [11,22,33,44,55,66,77,88,99]; >> B = A(1:2:end-1) B = 11 33 55 77 >> C = A(2:2:end-1) C = 22 44 66 88...

5 Tage ago | 1

Answered

modify the matrix, rearrangement of elements

>> a = [2,4,7,11;7,9,5,54;2,5,7,9;12,41,45,21] a = 2 4 7 11 7 9 5 54 2 5 7 ...

modify the matrix, rearrangement of elements

>> a = [2,4,7,11;7,9,5,54;2,5,7,9;12,41,45,21] a = 2 4 7 11 7 9 5 54 2 5 7 ...

7 Tage ago | 1

Answered

How can I create a new cell array from an existing one?

Country = strrep(Country,'"','')

How can I create a new cell array from an existing one?

Country = strrep(Country,'"','')

7 Tage ago | 0

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Answered

Numerical error representing data in Format Long

"I have had a surprise making with this simple multiplication:" Nothing in that result is surprising. "The result must be 8.2e...

Numerical error representing data in Format Long

"I have had a surprise making with this simple multiplication:" Nothing in that result is surprising. "The result must be 8.2e...

7 Tage ago | 1

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Answered

Is it possible to determine within a function the location of that function?

https://www.mathworks.com/help/matlab/ref/mfilename.html p = mfilename('fullpath') [p,n] = fileparts(p)

Is it possible to determine within a function the location of that function?

https://www.mathworks.com/help/matlab/ref/mfilename.html p = mfilename('fullpath') [p,n] = fileparts(p)

7 Tage ago | 0

Answered

How to list files in the directory

https://www.mathworks.com/help/matlab/ref/dir.html D = 'absolute/relative path to where the files are saved'; S = dir(fullfile...

How to list files in the directory

https://www.mathworks.com/help/matlab/ref/dir.html D = 'absolute/relative path to where the files are saved'; S = dir(fullfile...

8 Tage ago | 0

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Answered

Concatenate same fields in multiple structures in a loop using field names

Because all of the structures contain the same fieldnames they should be stored as one non-scalar structure: https://www.mathwo...

Concatenate same fields in multiple structures in a loop using field names

Because all of the structures contain the same fieldnames they should be stored as one non-scalar structure: https://www.mathwo...

8 Tage ago | 0

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Answered

How to generate all combinations of N struct vectors.

It is much simpler when those structures are stored in one cell array, e.g.: C{1}(1).a = 5; C{1}(2).a = 9; C{2}(1).b = 2; C{...

How to generate all combinations of N struct vectors.

It is much simpler when those structures are stored in one cell array, e.g.: C{1}(1).a = 5; C{1}(2).a = 9; C{2}(1).b = 2; C{...

8 Tage ago | 0

Answered

Call to function with multiple outputs

[~,y2] = f(x) https://www.mathworks.com/help/matlab/matlab_prog/ignore-function-outputs.html

Call to function with multiple outputs

[~,y2] = f(x) https://www.mathworks.com/help/matlab/matlab_prog/ignore-function-outputs.html

8 Tage ago | 0

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Answered

Saving previous values in a function to use them within it

https://www.mathworks.com/help/matlab/ref/persistent.html

Saving previous values in a function to use them within it

https://www.mathworks.com/help/matlab/ref/persistent.html

8 Tage ago | 0

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Answered

Sort Data by Second Column

Use sortrows, e.g. where M is your matrix: M = sortrows(M,2); If you really want to use sort, then of course you will need to ...

Sort Data by Second Column

Use sortrows, e.g. where M is your matrix: M = sortrows(M,2); If you really want to use sort, then of course you will need to ...

9 Tage ago | 0

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Answered

how to plot a vector

"what's wrong with my code?" you preallocate a variable named Vho which you never use again. inside the loop you allocate to a...

how to plot a vector

"what's wrong with my code?" you preallocate a variable named Vho which you never use again. inside the loop you allocate to a...

10 Tage ago | 1

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Answered

Error : Undefined variable

You incorrectly transcribed the error message: the actual character shown is lower-case L, i.e. l, not a 1 like you showed. To a...

Error : Undefined variable

You incorrectly transcribed the error message: the actual character shown is lower-case L, i.e. l, not a 1 like you showed. To a...

10 Tage ago | 0

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Answered

Suppressing ans in a function

To avoid the ans you must use a semi-colon when you call the function: str = encrypt(...); % ^ you need this s...

Suppressing ans in a function

To avoid the ans you must use a semi-colon when you call the function: str = encrypt(...); % ^ you need this s...

11 Tage ago | 0

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Answered

I keep getting two answers for my code

fconvg = int(k*j, x, 0, t) % ^ missing semi-colon This line should probably come after the if-end. Th...

I keep getting two answers for my code

fconvg = int(k*j, x, 0, t) % ^ missing semi-colon This line should probably come after the if-end. Th...

12 Tage ago | 0

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Answered

Solving linear system 2 equations, 2 unknowns, not A = b*C form

Using a numeric solver or the symbolic toolbox is like using a sledge-hammer to crack open a tiny walnut! It is very simple to ...

Solving linear system 2 equations, 2 unknowns, not A = b*C form

Using a numeric solver or the symbolic toolbox is like using a sledge-hammer to crack open a tiny walnut! It is very simple to ...

12 Tage ago | 0

Answered

Button Colors and Shapes in GUIDE

http://undocumentedmatlab.com/articles/modifying-matlab-look-and-feel https://www.mathworks.com/matlabcentral/fileexchange/4086...

Button Colors and Shapes in GUIDE

http://undocumentedmatlab.com/articles/modifying-matlab-look-and-feel https://www.mathworks.com/matlabcentral/fileexchange/4086...

12 Tage ago | 0

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Answered

How to find the index of first and last nonzero elements in each column?

This works for any array, 2D, 3D, etc., and returns the requested linear indices: >> A = [0,0,0,0;0,0,0,0;1,0,4,8;2,0,5,9;3,1,6...

How to find the index of first and last nonzero elements in each column?

This works for any array, 2D, 3D, etc., and returns the requested linear indices: >> A = [0,0,0,0;0,0,0,0;1,0,4,8;2,0,5,9;3,1,6...

12 Tage ago | 1

Answered

Create one file from many files

D = 'absolute/relative path to where the files are saved'; N = 25; % number of files C = cell(1,N); for k = 1:N F = full...

Create one file from many files

D = 'absolute/relative path to where the files are saved'; N = 25; % number of files C = cell(1,N); for k = 1:N F = full...

12 Tage ago | 0

Answered

Randomly convert exact number of 1 to 0 in binary matrix

>> M = [0,1,0;1,0,1;1,1,1] M = 0 1 0 1 0 1 1 1 1 >> X = find(M); >> M(X(randperm(nu...

Randomly convert exact number of 1 to 0 in binary matrix

>> M = [0,1,0;1,0,1;1,1,1] M = 0 1 0 1 0 1 1 1 1 >> X = find(M); >> M(X(randperm(nu...

12 Tage ago | 1

Answered

need solution asap for my hw about summing each character in student number that we input the data

The MATLAB way: >> str = input('enter your student number here: ','s'); enter your student number here: 20758562 >> num = sum...

need solution asap for my hw about summing each character in student number that we input the data

The MATLAB way: >> str = input('enter your student number here: ','s'); enter your student number here: 20758562 >> num = sum...

12 Tage ago | 0