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Answered

how to clip column into vectors with the rules I set

>> [~,~,idx] = unique(floor(A(:,1)/10)); >> out = accumarray(idx,A(:,2),[],@(v){v}); >> out{1} ans = 0.3000 0.8000 ...

how to clip column into vectors with the rules I set

>> [~,~,idx] = unique(floor(A(:,1)/10)); >> out = accumarray(idx,A(:,2),[],@(v){v}); >> out{1} ans = 0.3000 0.8000 ...

3 días ago | 2

Answered

Floor function with a space giving an array output

Your example uses command syntax, which is explained here: https://www.mathworks.com/help/matlab/matlab_prog/command-vs-functio...

Floor function with a space giving an array output

Your example uses command syntax, which is explained here: https://www.mathworks.com/help/matlab/matlab_prog/command-vs-functio...

3 días ago | 0

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Answered

How to interpret entries in documentation's left pane

"What do the entries below that represent?" They list all other page headings that are at the same level in the current Content...

How to interpret entries in documentation's left pane

"What do the entries below that represent?" They list all other page headings that are at the same level in the current Content...

3 días ago | 1

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Answered

How to use regexp to extract data?

>> tdata = {'XX__TG';'GB_TH';'BN__TH'}; >> spl = regexp(tdata,'_+','split'); >> spl = vertcat(spl{:}); >> out1 = spl(:,1) ou...

How to use regexp to extract data?

>> tdata = {'XX__TG';'GB_TH';'BN__TH'}; >> spl = regexp(tdata,'_+','split'); >> spl = vertcat(spl{:}); >> out1 = spl(:,1) ou...

3 días ago | 0

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Answered

Why am I warned about defining variables in a nested function, when I don't?

So far no one has actually explained the warning, which is a pity because this is really quite an interesting question. Some an...

Why am I warned about defining variables in a nested function, when I don't?

So far no one has actually explained the warning, which is a pity because this is really quite an interesting question. Some an...

4 días ago | 3

Answered

How do I swap the elements in the major diagonal with those in the minor diagonal?

Similar to madhan ravi's answer, without sorting: >> x = [1,2,3,4,5;6,7,8,9,1;2,3,4,5,6;7,8,9,1,2] x = 1 2 3 4 5 ...

How do I swap the elements in the major diagonal with those in the minor diagonal?

Similar to madhan ravi's answer, without sorting: >> x = [1,2,3,4,5;6,7,8,9,1;2,3,4,5,6;7,8,9,1,2] x = 1 2 3 4 5 ...

4 días ago | 2

Answered

Removing the max and min of a vector without removing multiple minimums or maximums

[~,Sx] = min(a1); % Shortest Link [~,Lx] = max(a1); % Longest Link a2 = a1; a2([Sx,Lx]) = [] And tested using the values tha...

Removing the max and min of a vector without removing multiple minimums or maximums

[~,Sx] = min(a1); % Shortest Link [~,Lx] = max(a1); % Longest Link a2 = a1; a2([Sx,Lx]) = [] And tested using the values tha...

4 días ago | 1

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Answered

How to import data with exotic delimiters.

Using textscan's optional arguments properly avoids awkward reshaping of the output (and you have more flexibility because you c...

How to import data with exotic delimiters.

Using textscan's optional arguments properly avoids awkward reshaping of the output (and you have more flexibility because you c...

5 días ago | 0

Answered

How to save multiple text files with same name, but with incrementing numbers

"The function I'm using, writetable, requires to specify the filename between apostrophes..." Actually the writetable documenta...

How to save multiple text files with same name, but with incrementing numbers

"The function I'm using, writetable, requires to specify the filename between apostrophes..." Actually the writetable documenta...

5 días ago | 0

Answered

Automatically naming mat files with variable names

The cause of your difficulties lies in the unfortunate design decision to force meta-data into the variable names. Meta-data is ...

Automatically naming mat files with variable names

The cause of your difficulties lies in the unfortunate design decision to force meta-data into the variable names. Meta-data is ...

6 días ago | 1

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Answered

How can I merge rows into one with the same ID number?

Assuming that the non-diagonal values are exactly zero, then you could use varfun something like this: >> T = cell2table({'A',1...

How can I merge rows into one with the same ID number?

Assuming that the non-diagonal values are exactly zero, then you could use varfun something like this: >> T = cell2table({'A',1...

6 días ago | 0

Answered

Storing the generated matrices from a for loop into cell arrays and access them later to multiply them altogether

No cell array required: >> x = [2,5,23]; >> A = [9,8;7,6]; >> [n,n] = size(A); >> M = 1; >> for k=numel(x):-1:1; M = M*(A-x...

Storing the generated matrices from a for loop into cell arrays and access them later to multiply them altogether

No cell array required: >> x = [2,5,23]; >> A = [9,8;7,6]; >> [n,n] = size(A); >> M = 1; >> for k=numel(x):-1:1; M = M*(A-x...

8 días ago | 0

Answered

Example got removed from the mathworks website

Unfortunately the Wayback Machine did not seem to have a copy of it, but it was still available in Google Cache, so I saved you ...

Example got removed from the mathworks website

Unfortunately the Wayback Machine did not seem to have a copy of it, but it was still available in Google Cache, so I saved you ...

9 días ago | 1

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Answered

Substitute string to double

>> A = {'0+1/R1','0-1/R1','1';'0-1/R1','0+1/R1+1/R2','0';'1','0','0'}; >> A = strrep(A,'R1','1000'); >> A = strrep(A,'R2','100...

Substitute string to double

>> A = {'0+1/R1','0-1/R1','1';'0-1/R1','0+1/R1+1/R2','0';'1','0','0'}; >> A = strrep(A,'R1','1000'); >> A = strrep(A,'R2','100...

9 días ago | 0

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Answered

i want to write a code where equation is y=x*x. if y=100 what is the value of x?

>> f = @(x) x.^2 - 100; >> x = fzero(f,pi) x = 10

i want to write a code where equation is y=x*x. if y=100 what is the value of x?

>> f = @(x) x.^2 - 100; >> x = fzero(f,pi) x = 10

9 días ago | 0

| accepted

Answered

delete column from matrix

Where M is your matrix: M = M(:,24:24:end)

delete column from matrix

Where M is your matrix: M = M(:,24:24:end)

10 días ago | 0

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Answered

How can I differentiate between powermod(a,b,c) and mod(a^b,c)

>> 104^45 ans = 5.8412e+90 is well above flintmax, so it is very unlikely to exactly represent the integer that you think ...

How can I differentiate between powermod(a,b,c) and mod(a^b,c)

>> 104^45 ans = 5.8412e+90 is well above flintmax, so it is very unlikely to exactly represent the integer that you think ...

10 días ago | 0

Answered

matrix creation from a loop

The simplest and most efficient solution is to just create one matrix: lat = zeros(6964,60) which you can then trivially acces...

matrix creation from a loop

The simplest and most efficient solution is to just create one matrix: lat = zeros(6964,60) which you can then trivially acces...

10 días ago | 1

Answered

How can I index a 3D array like A(n,m,:) and get the result as a 1D array?

B = reshape(A(2,3,:),1,[])

How can I index a 3D array like A(n,m,:) and get the result as a 1D array?

B = reshape(A(2,3,:),1,[])

10 días ago | 0

| accepted

Answered

How to attribute a letter to unique combinaisons

There does not seem to be a convenient way to apply a function to table groups that does not also accumulate the results (e.g. l...

How to attribute a letter to unique combinaisons

There does not seem to be a convenient way to apply a function to table groups that does not also accumulate the results (e.g. l...

10 días ago | 0

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Answered

How can I pass a anonymous function as an output to another function?

"Looks likes I am not allowed to do that . I would like to know how this can be achieved" Your attempted code has several bugs ...

How can I pass a anonymous function as an output to another function?

"Looks likes I am not allowed to do that . I would like to know how this can be achieved" Your attempted code has several bugs ...

10 días ago | 0

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Answered

image a set of matrix variables after loading them in

Do not use load. Assign the imported data to an array, e.g.: theFiles(k).data = readmatrix(fullFileName); Now all of your impo...

image a set of matrix variables after loading them in

Do not use load. Assign the imported data to an array, e.g.: theFiles(k).data = readmatrix(fullFileName); Now all of your impo...

11 días ago | 1

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Answered

adding and subtracting elements in the same row in an nested for loop

"My assumption is that I have to do this using a nested for loop." Using array operations would be a much better use of MATLAB,...

adding and subtracting elements in the same row in an nested for loop

"My assumption is that I have to do this using a nested for loop." Using array operations would be a much better use of MATLAB,...

11 días ago | 0

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Answered

How can I sort a matrix to match another matrix?

>> [~,idx] = sort(B); >> [~,idx(idx)] = sort(A(:,2)); >> A = A(idx,:) A = 11 1 21 2 12 1 31 3 ...

How can I sort a matrix to match another matrix?

>> [~,idx] = sort(B); >> [~,idx(idx)] = sort(A(:,2)); >> A = A(idx,:) A = 11 1 21 2 12 1 31 3 ...

11 días ago | 1

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Answered

Maximization of a Function

The syntax .. = -@(..) is not valid for multiple reasons: the output of @ is a function handle. Arithmetic operations are no...

Maximization of a Function

The syntax .. = -@(..) is not valid for multiple reasons: the output of @ is a function handle. Arithmetic operations are no...

11 días ago | 1

Answered

How can I make multiple vectors the same length?

Because each of the input columns has their own domain, you will have to loop over the columns and interpolate each column separ...

How can I make multiple vectors the same length?

Because each of the input columns has their own domain, you will have to loop over the columns and interpolate each column separ...

11 días ago | 1

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Answered

How do I read multiple float values in different columns from a txt-File with headers?

You can simply use any of the high-level file importing commands that your version of MATLAB supports, e.g. readtable, readmatri...

How do I read multiple float values in different columns from a txt-File with headers?

You can simply use any of the high-level file importing commands that your version of MATLAB supports, e.g. readtable, readmatri...

12 días ago | 1

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Answered

Finding specific number of characters in vector

>> c = 'aryzbuk'; >> nnz(c~='b' & c~='r') ans = 5

Finding specific number of characters in vector

>> c = 'aryzbuk'; >> nnz(c~='b' & c~='r') ans = 5

12 días ago | 0

Answered

how to store the matrix value in cell array?

If C is a matrix, then you need to use curly braces to access the contents of the cell array T3: T3 = cell(1,10); for k1 = 1:n...

how to store the matrix value in cell array?

If C is a matrix, then you need to use curly braces to access the contents of the cell array T3: T3 = cell(1,10); for k1 = 1:n...

12 días ago | 0

| accepted