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Bruno Luong


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Answered
How do I convert a non-normal distribution to an equivalent normal distribution?
You can almost always map a reasonable continuous random distribution to a normal one. If r follows some distribution law and y...

ein Tag ago | 1

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Answered
Obtaining the combinations of a vector array to satisfy lineal constrains.
See this thread (14 year ago) with simlar question, the technique using gcd can help to reduce the search https://groups.google...

ein Tag ago | 0

Answered
Is there an easy way to remove points from a signal which can be restored by interpolation
This Free knot spline FEX can acoomplish what you ask for.

ein Tag ago | 0

Answered
Preallocate variables with unkown size
You can compute exactly the size needed for your vectors A = G_orig.adjacency; A(inActive,:) = 0; m = nnz(A(:,inActive)); ph...

5 Tage ago | 0

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Answered
Reshape Nx1 struct with field of Mx1 elements to N*Mx1 vector
Something like B = cat(1,A.bar)

6 Tage ago | 0

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Answered
cumulative sum table over group
tableA = {"A" 1 0 3 ; "A" 1 2 3 ; "A" 1 3 3 ; "A" 2 0 2; "A" 2 2 ...

8 Tage ago | 1

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Question


What means "MATLAB connector is not running"?
I have a GUI app that runs fine under MATLAB, however when compiled as standalone with MCC, I get a strange warning message "w...

8 Tage ago | 1 answer | 0

1

answer

Answered
multi array vectorization problem (reformulated)
A = [ -0.8013 -0.4981; -0.2278 -0.9009]; t = 0:3; % eigen space [V,D]=eig(A,'vector'); D = reshape(D,1,[]); % compu...

9 Tage ago | 2

Answered
Find differences in a set of points without a for loop
x = randi(10,3,1) d = abs(x - x.')

9 Tage ago | 0

Answered
Rotate the coordinate system to align an existing plane with Y'Z' plane
Take a look at this thread and see if you can use it

12 Tage ago | 0

Answered
replace matrix A with the values of another matrix B
A= cat(3, [ 0 0 1; 0 1 0; 0 1 1], ... [1 0 0, 0 0 0; 0 0 0], ... [0 1 ...

13 Tage ago | 1

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Answered
Can anyone please vectorize the code I have?
There is nothing in your data to guess that Jout must have 14 elements, the last index > 0 is 13. J_org = [ 0 2 0 ...

14 Tage ago | 0

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Answered
Variable f coeffficient depends on x for linprog
Solve 2 problems f= [0 f2]; x = linprog(f,A,b,Aeq,beq,lb1,up1); with lb1 = -inf(size(x)), up1 = zeros(size(x)); g= [50 f2]; ...

24 Tage ago | 0

Answered
Computing Euclidean distance between 2 points
For a row vector d % sum(d.^2) is equal to % d*d' Example d=randi(10,1,3) sum(d.^2) d*d'

25 Tage ago | 1

Answered
Standalone compiled with Matlab compiler doesn't work
Have you include PSD_FSE3D.xml in the packaging? Do you take into account the path of the file is different when you run in sta...

28 Tage ago | 0

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Answered
Surface plot of function over triangular domain
P1 = [1,1]; P2 = [2,0.5]; P3 = [4,4]; zfun = @(x,y) x.^2+y.^2; % Create triangular mesh of triangla P1,P2,P3 n=20; [I,J]...

29 Tage ago | 1

Answered
swaping 2 random numbers from array
ij = randperm(length(x)-1,2)+1; x(ij) = x(flip(ij));

30 Tage ago | 0

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Answered
Warning: Matrix is close to singular or badly scaled. Results may be inaccurate.
It's a warning (not really error) It means your matrix is numerically not invertible (or almost not invertible)

30 Tage ago | 0

Answered
when edit figure error "undefined function mtimes for input arguments of type string"
can you type dbstop if error on MATLAB command window, then try to trigger the error?

30 Tage ago | 1

Answered
Matrix from measured data is singular, what could be the reason?
Could you try the normalization similar to my answer here?

etwa ein Monat ago | 0

Answered
I want to find out points whose coordinates are within the volume formed by a cone shape.
Assuming the cone center is C: (3 x 1) coneangle is the cone angle (0 to pi, pi corresponds to the extreme case where the con...

etwa ein Monat ago | 0

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Answered
Plot differential equations with respect to two variables in a 3d plane
Try this (adapt to your code): %editparams; %file that contains parameters Tend = 10; Nt = 100; % Define RHS functions RHS ...

etwa ein Monat ago | 0

Answered
Generating a Dictionary Function
You can use container.Map. I give here example of numbers, but it can handle char array or strings as well. The time access, u...

etwa ein Monat ago | 0

Answered
For consistency with "nan", wouldn't it be nice to be able to issue "missing(3)"?
Why not define your own function mymissing mymissing(3) mymissing(2,3) mymissing(2,'string') mymissing(2,3,'double') fun...

etwa ein Monat ago | 0

Answered
Execution of script nchoosek as a function is not supported
Please do that which nchoosek you must find somewhere similar to the above or this C:\Program Files\MATLAB\R2022a\toolbox\ma...

etwa ein Monat ago | 0

Answered
time date to datenum and datenum to datetime
I make a round conversion so you can convert any format to any other by using the appropriate substeps dt=datetime(2022,04,28,1...

etwa ein Monat ago | 1

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Answered
Hello everyone.I'm new to the community, please help me to use matlab to calculate the volume of this 3D Shape
u=linspace(0,1,31); v=linspace(0,2*pi,37); [u,v]=meshgrid(u,v); x=(1-u).*(3+cos(v)).*cos(4.*pi.*u); y=(1-u).*(3+cos(v)).*sin...

etwa ein Monat ago | 2

| accepted

Answered
VertCat unique rows of multiple tables.
% dummy test data Filename1=["a"; "b"; "c"]; Data1=["a1"; "b1"; "c1"]; T1=table(Filename1,Data1,'VariableNames',{'Filename','...

etwa ein Monat ago | 0

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Answered
how to multiply a curve (in a plot) by -1, if you do not have the original data? (I only have the plotted data.)
Plot your figure, you can then retrieve the data with x = get(findobj(gcf,'Type','line'), 'xdata') y = get(findobj(gcf,'Type',...

etwa ein Monat ago | 0

Answered
I am looking for a way to include duplicates into ismember function
Why use ismember at all (at least in that way)? O = Osw( interp1(a,1:length(a),y, 'nearest'))

etwa ein Monat ago | 1

| accepted

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