Beantwortet
How to import equation from GUI to functions?
Here is an example. Paste the code into a new M-file and run it. In the text box you can enter an equation which depends on x,...

fast 14 Jahre vor | 1

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Beantwortet
Can I plot rectangles without rescalling axis limits?
You need to post complete example code. I see no problems with this: ezplot(@sin) hold on rectangle('Position', [...

fast 14 Jahre vor | 0

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Beantwortet
Bargraph from variable length structure
As long as your x data does not contain duplicates: % Data. Note the x has no duplicates. variable.dataset(1).x = [1 2...

fast 14 Jahre vor | 0

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Beantwortet
is it possible to increment color and markers automatically for a plot in a loop?
You can do this: set(0,'DefaultAxesLineStyleOrder',{'+','o','*','.','x','s','d','^','v','>','<','p','h'}); Then look: ...

fast 14 Jahre vor | 0

Beantwortet
selecting particular elements from a cell array
idx = all(cellfun(@(x) ~isequal(x,0),A(:,[1 3])),2) R = A(idx,[1 3 4 5])

fast 14 Jahre vor | 1

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Beantwortet
take line sum of part of matrix
Another: % Given data A = [1, 2, 54, 4, 5, 6;... 1, 2, 88, 4, 5, 6;... 1, 2, 0, 4, 5, 6]; b = [5;...

fast 14 Jahre vor | 2

Beantwortet
HOW TO MOVE THE ELEMENTS BACK IN ORDER IN MATRICS WHICH ARE BEEN MOVED DIAGONALLY
Are you asking how to undo what your code does? for jj = -size(I,1) + 2 : size(I,2) - 2 a = diag(idx,jj); ...

fast 14 Jahre vor | 1

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Beantwortet
Does isdouble works in MATLAB
A = magic(3); B = single(A); isa(A,'double') isa(B,'double') If you need the isdouble function but don't have it, ...

fast 14 Jahre vor | 2

Beantwortet
for loop options in Matlab
A = magic(5) cnt = 1; for jj = A disp(['Column #' num2str(cnt)]) disp(jj), cnt = cnt+1; end

fast 14 Jahre vor | 1

Beantwortet
Anonymous function hyperbolic function code
When asking for help, please be as specific as possible. You get errors? *WHAT ERRORS*? snh = @(x) (exp(x)-exp(-x))/2 ...

fast 14 Jahre vor | 0

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Beantwortet
sum every 24 rows in a vector
If A is 8760-by-1, and you want to find the sum of every 24 elements, such that you will end up with 365 sums, then do: sum...

fast 14 Jahre vor | 5

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Beantwortet
How to update matrix values using algorithm based on position?
The straightforward way is to just use a loop: A = zeros(n); for ii = 1:n for jj = 1:n A(ii,jj) = 1/(ii+j...

fast 14 Jahre vor | 0

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Beantwortet
How to manipulate data provided by a user via a dialog box?
With cell array you have to access the contents using curly braces. Also note that the data is a string, not a number. ...

fast 14 Jahre vor | 1

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Beantwortet
Help with finding zero spots (fzero)
Here is a solution that uses your m-file function. Roots(1) = fzero(@f,0); Roots(2) = fzero(@f,2); Roots(4) = fzero(@...

fast 14 Jahre vor | 0

Beantwortet
Preventing repeated sequences in a matrix
I think I figured out that Shuffle is on the FEX. Part of the problem is that you are just going to have more chance to get 3...

fast 14 Jahre vor | 0

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Beantwortet
how to create while statement
while ~all(A==1) % code here that changes A end

fast 14 Jahre vor | 1

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Beantwortet
Constructing a matrix from several diagonal matrixes (the code is included)
Replace your second loop with this: M = zeros(size(A)); for dd = min(v):max(v) Mcal = (diag(A,dd)+differance(a)...

fast 14 Jahre vor | 0

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Beantwortet
Correct Sprintf use on legend
Use: \\pm % The first \ escapes the use of the escape \. instead of: \pm

fast 14 Jahre vor | 1

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Beantwortet
How can I compute Jacobi Elliptic Functions in Matlab where the modulus is > 1?
Use (for m>1): sn(u,m) = sqrt(1/m)*sn(u*sqrt(m),1/m) cn(u,m) = dn(u*sqrt(m),1/m) dn(u,m) = cn(u*sqrt(m),...

fast 14 Jahre vor | 0

Beantwortet
Question about variable in a vector.
You cannot rely on mixing types in a regular array. [3 4 A] may return an error message if A is not defined, or if A is n...

fast 14 Jahre vor | 0

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sum() function in different Matlab version give different result
How different are the results, percent-wise? It is possible that the underlying algorithm has changed, and of course the or...

fast 14 Jahre vor | 0

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Beantwortet
stem3 with log axis - recovering stems
What happens is that a stem plot has the lines with on point on the z=0 plane. Taking the log of this throws this point to -inf....

fast 14 Jahre vor | 0

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Beantwortet
How to use scroll bar to view number of axes in the given figure window.
Here is an example. function [S] = scroll_plot() % Scroll through 8 plots. S.fh = figure('units','pixels',....

fast 14 Jahre vor | 0

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Discussion

Share your favorite snippet or utility
I am wondering what others use for those little short-cuts or niceties in MATLAB. I have in mind something you wrote or somethi...

fast 14 Jahre vor | 8

Frage

Share your favorite snippet or utility
I am wondering what others use for those little short-cuts or niceties in MATLAB. I have in mind something you wrote or somethi...

fast 14 Jahre vor | 11 Antworten | 8

11

Antworten

Beantwortet
dimension mismatch error in Matlab
With code like this: A(i,:)=B(1,:); % Assume i is a scalar... you need to make sure that: size(B,2)==size(A,2) ...

fast 14 Jahre vor | 0

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compute the mean of a field in a struct
The mean of 19 and 24 is *not* 33.5. mean([student.age])

fast 14 Jahre vor | 5

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Beantwortet
Questions about Fractions and integers?
A = 9; % Also try with A = 7/8; if floor(A)==A disp('Integer') else disp('fraction') end

fast 14 Jahre vor | 0

Beantwortet
Updating Table Data not working
Where is the second piece of code in relation to the first piece? Strange, because it works just fine here: RN = {'a','b...

fast 14 Jahre vor | 0

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Beantwortet
Warning: Unable to interpret LaTeX string
First of all you really should learn to use SPRINTF instead of EVAL. Please look at the help for SPRINTF and do not use EVAL in...

fast 14 Jahre vor | 3