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Concatenate Structures: select structures only if not empty.
This clearly shows the drawback of naming your variables dynamically, like A1, A2, A3, A4. If you change, for instance, the way ...
Concatenate Structures: select structures only if not empty.
This clearly shows the drawback of naming your variables dynamically, like A1, A2, A3, A4. If you change, for instance, the way ...
5 years 前 | 1
| 已接受
已回答
How to find slope of this line
You can create a complete list of x,y pairs by expanding x to the size of y. Looking at your code, I think a single element of x...
How to find slope of this line
You can create a complete list of x,y pairs by expanding x to the size of y. Looking at your code, I think a single element of x...
5 years 前 | 0
| 已接受
已回答
Dissect a String and create list with Matlab
A = "black || white || pink || yellow" B = split(erase(A,'|')).'
Dissect a String and create list with Matlab
A = "black || white || pink || yellow" B = split(erase(A,'|')).'
5 years 前 | 0
| 已接受
已回答
Removing NaNs from a struct
TF = arrayfun(@(k) isnan(AllData.Passive(k).T(1)), 1:numel(AllData.Passive)) AllData.Passive(TF) = []
Removing NaNs from a struct
TF = arrayfun(@(k) isnan(AllData.Passive(k).T(1)), 1:numel(AllData.Passive)) AllData.Passive(TF) = []
5 years 前 | 1
已回答
Changing Indexing Order in matrix raws
Your question is a little confusing, but here is my take on it: A1 = [0 0 0 0 0 0 0 0 0 1 2 3 4 5] A2 = [12 11 14 5 1] out([n...
Changing Indexing Order in matrix raws
Your question is a little confusing, but here is my take on it: A1 = [0 0 0 0 0 0 0 0 0 1 2 3 4 5] A2 = [12 11 14 5 1] out([n...
5 years 前 | 1
已回答
Repeating a function n times with different values from a vector
If you organize the input differently, this is not so difficult x = [1 2 ; 3 4 ; 5 6] ; % organized into rows N = size(x,1) ; ...
Repeating a function n times with different values from a vector
If you organize the input differently, this is not so difficult x = [1 2 ; 3 4 ; 5 6] ; % organized into rows N = size(x,1) ; ...
5 years 前 | 1
| 已接受
已回答
i have a question that works backwards
What about % X is known F = X D = ones(size(F)) % F ./ (D.^5) equals X or is this to simply thought by me ;-)
i have a question that works backwards
What about % X is known F = X D = ones(size(F)) % F ./ (D.^5) equals X or is this to simply thought by me ;-)
5 years 前 | 0
已回答
How can i use nchoosek to output both the k combinations and the remaining combinations?
The remaining values can simply be obtained using nchoosek(1:n, n-k), you just have to flip the order of the output :-) n = 7 ...
How can i use nchoosek to output both the k combinations and the remaining combinations?
The remaining values can simply be obtained using nchoosek(1:n, n-k), you just have to flip the order of the output :-) n = 7 ...
5 years 前 | 2
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How to create a matrix from for loop result?
D = [170, -80, -30, 0, -50, -30, 20, -60, 100, -60 -20]; Iplus=find(D>0); A = [] ; % initialize for i=1:size(Iplus,...
How to create a matrix from for loop result?
D = [170, -80, -30, 0, -50, -30, 20, -60, 100, -60 -20]; Iplus=find(D>0); A = [] ; % initialize for i=1:size(Iplus,...
5 years 前 | 0
| 已接受
已回答
How to select desired row
ix = [0:224:81563]' + 1:112 ; % calculate row indices ix(ix>size(A,1)) = [] % remove row indices that are too larger A2 = A(ix...
How to select desired row
ix = [0:224:81563]' + 1:112 ; % calculate row indices ix(ix>size(A,1)) = [] % remove row indices that are too larger A2 = A(ix...
5 years 前 | 1
| 已接受
已回答
How to change character in multiple cells in to number 0 and 1?
Sex = {'F','M','F','F','M','M','F'} [~, SexNum] = ismember(Sex, {'F','M'}) SexNum = SexNum - 1 % 1 = 'M', 0 = 'F', -1 = other ...
How to change character in multiple cells in to number 0 and 1?
Sex = {'F','M','F','F','M','M','F'} [~, SexNum] = ismember(Sex, {'F','M'}) SexNum = SexNum - 1 % 1 = 'M', 0 = 'F', -1 = other ...
5 years 前 | 0
| 已接受
已回答
load files whith a previus specified name
Didn't you just make a simple typo? % Aplha vs Alpha % | |
load files whith a previus specified name
Didn't you just make a simple typo? % Aplha vs Alpha % | |
5 years 前 | 1
| 已接受
已回答
Using numpad 8 2 6 4 as North South East West
Perphaps my getkey function may be of use to you: https://www.mathworks.com/matlabcentral/fileexchange/7465-getkey
Using numpad 8 2 6 4 as North South East West
Perphaps my getkey function may be of use to you: https://www.mathworks.com/matlabcentral/fileexchange/7465-getkey
5 years 前 | 0
已回答
I keep getting the error message that vectors must be the same length in the plot command
So, apparently the two vectors are not of the same length. You really should learn how to debug your own code. Set a breakpoint ...
I keep getting the error message that vectors must be the same length in the plot command
So, apparently the two vectors are not of the same length. You really should learn how to debug your own code. Set a breakpoint ...
5 years 前 | 1
已回答
Select random elements from three consecutive columns in a big matrix?
M = magic(5) % input data N = 4 % number of selections nC = 3 % number of consecutive columns % engine szM = size(M) r...
Select random elements from three consecutive columns in a big matrix?
M = magic(5) % input data N = 4 % number of selections nC = 3 % number of consecutive columns % engine szM = size(M) r...
5 years 前 | 0
已回答
select random row inside the cell
You want the row, or the row number to be returned? A={[1,4,6;6,5,4;1,2,4],[1,3;5,4],[1,2;1,7;6,8]} rownumber = cellfun(@(c)...
select random row inside the cell
You want the row, or the row number to be returned? A={[1,4,6;6,5,4;1,2,4],[1,3;5,4],[1,2;1,7;6,8]} rownumber = cellfun(@(c)...
5 years 前 | 0
| 已接受
已回答
Vectorizing nested for loops
A = magic(5) d = squareform(pdist(transpose(A))) % transpose to obtain vecnorm between columns pdist and squareform are part ...
Vectorizing nested for loops
A = magic(5) d = squareform(pdist(transpose(A))) % transpose to obtain vecnorm between columns pdist and squareform are part ...
5 years 前 | 1
| 已接受
已回答
how to find the element which is greater than or equal to its row and smaller or equal to its column in a matrix
function out = saddle(M) [r, c] = ind2sub(size(M), 1:numel(M)) ; tf = arrayfun(@(r, c) all(M(r, c) >= A(:, c)) && all(M(r, c) ...
how to find the element which is greater than or equal to its row and smaller or equal to its column in a matrix
function out = saddle(M) [r, c] = ind2sub(size(M), 1:numel(M)) ; tf = arrayfun(@(r, c) all(M(r, c) >= A(:, c)) && all(M(r, c) ...
5 years 前 | 0
已回答
omit same element inside cell
You can convert the elements of each cell to a char array and apply unique on that cell array of chars. A = {[1,2,3,4],[4,2,3],...
omit same element inside cell
You can convert the elements of each cell to a char array and apply unique on that cell array of chars. A = {[1,2,3,4],[4,2,3],...
5 years 前 | 1
已回答
How to store vectors into a matrix that have different sizes?
Next to cell arrays, you can also use struct arrays, which can be more ... euh ... structured than cell arrays ;-) a(1).data = ...
How to store vectors into a matrix that have different sizes?
Next to cell arrays, you can also use struct arrays, which can be more ... euh ... structured than cell arrays ;-) a(1).data = ...
5 years 前 | 0
已回答
Repeating or rerunning a loop
Use a while loop, which is more flexible than a for -loop. Something like this might work: seq = [3, 1, 2, 1, 3, 2]; % trial se...
Repeating or rerunning a loop
Use a while loop, which is more flexible than a for -loop. Something like this might work: seq = [3, 1, 2, 1, 3, 2]; % trial se...
5 years 前 | 0
| 已接受
已回答
Probability of exactly one even number
I suggest you use two counters: one counting the numbers of even values in a single throw, and one counting the number of throws...
Probability of exactly one even number
I suggest you use two counters: one counting the numbers of even values in a single throw, and one counting the number of throws...
5 years 前 | 1
已回答
How can I get a infinite loop in matlab?
an infinite loop k = 0 ; while true % useful code here k = k + 1 ; disp(k) end But are you sure you want an...
How can I get a infinite loop in matlab?
an infinite loop k = 0 ; while true % useful code here k = k + 1 ; disp(k) end But are you sure you want an...
5 years 前 | 2
已回答
How to use varargin: to specify a second input variable with separate output
You cannot compare strings with different lengths using ==. Use isequal or strcmpi instead, for instance: if isequal(lower(vara...
How to use varargin: to specify a second input variable with separate output
You cannot compare strings with different lengths using ==. Use isequal or strcmpi instead, for instance: if isequal(lower(vara...
5 years 前 | 1
| 已接受
已回答
Removing a Range of Elements from an array
ix = find(M(:,12) > 750, 1, 'first') % find the row index of the first element in the 12th column of A being larger than 750 M...
Removing a Range of Elements from an array
ix = find(M(:,12) > 750, 1, 'first') % find the row index of the first element in the 12th column of A being larger than 750 M...
5 years 前 | 0
已回答
How do i average all result in total loop,if some result in some of loop are NaN
Store each result in an array and average after the loop. An example: c = nan(1,10) ; % pre-allocation for speed for k = 1:10 ...
How do i average all result in total loop,if some result in some of loop are NaN
Store each result in an array and average after the loop. An example: c = nan(1,10) ; % pre-allocation for speed for k = 1:10 ...
5 years 前 | 0
| 已接受
已回答
Counting occurrences of a pair of numbers in a logical vector
A vectorised alternative: A = [0 1 0 0 1 0 0 0 0 0 1 1 0 0 1 0 1 ]; % Input vector ix = find(A) ix = ix(2:2:end) B = cumsum(...
Counting occurrences of a pair of numbers in a logical vector
A vectorised alternative: A = [0 1 0 0 1 0 0 0 0 0 1 1 0 0 1 0 1 ]; % Input vector ix = find(A) ix = ix(2:2:end) B = cumsum(...
5 years 前 | 0