Bruno Luong

Last seen: Today | 2009 以来アクティブ

Statistics

All

Content Feed

回答済み
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...

3日前 | 0

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

3日前 | 0

| 採用済み

回答済み
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 ...

5日前 | 1

| 採用済み

質問

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...

5日前 | 1 件の回答 | 0

1

回答

回答済み
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...

7日前 | 2

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

7日前 | 0

回答済み
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

10日前 | 0

回答済み
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 ...

11日前 | 1

| 採用済み

回答済み
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 ...

11日前 | 0

| 採用済み

回答済み
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]; ...

22日前 | 0

回答済み
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'

22日前 | 1

回答済み
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...

25日前 | 0

| 採用済み

回答済み
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]...

26日前 | 1

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

27日前 | 0

| 採用済み

回答済み
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)

27日前 | 0

回答済み
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?

27日前 | 1

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

27日前 | 0

回答済み
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...

27日前 | 0

| 採用済み

回答済み
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 ...

28日前 | 0

回答済み
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...

28日前 | 0

回答済み
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...

29日前 | 0

回答済み
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...

29日前 | 0

回答済み
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...

29日前 | 1

| 採用済み

回答済み
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...

30日前 | 2

| 採用済み

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

約1ヶ月前 | 0

| 採用済み

回答済み
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',...

約1ヶ月前 | 0

回答済み
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'))

約1ヶ月前 | 1

| 採用済み

回答済み
How to calculate the width that contains 60% of the total area of peaks?
load Intensity.mat load position.mat ifun=@(x) interp1(x2,Int,x,'linear','extrap'); I0=integral(ifun,x2(1),x2(end)) x = fz...

約1ヶ月前 | 0

回答済み
Rotate an Ellipsoid towards a point
axlgt = [5,1,1]; P = [5;6;7]; [~,i] = max(abs(axlgt)); ei = accumarray(i,1,[3,1]); a=cross(P,ei); T=makehgtform('axisrota...

約1ヶ月前 | 0

| 採用済み

回答済み
How to find a permutation matrix to turn a general hermitian matrix into a block diagonal one?
A = [1, 0, 1; 0, 1, 0; 1, 0, 1], p=symrcm(A) A(p,p)

約1ヶ月前 | 0

もっと読み込む