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...

約4年前 | 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...

約4年前 | 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...

約4年前 | 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4年前 | 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4年前 | 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4年前 | 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4年前 | 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4年前 | 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4年前 | 0

回答済み
Matrix is singular, RCOND=NAN for a OLS regression
First make sure your data X and Y contain only finite elements (no NaN, Inf, or such). Instead of b = inv(X'*X) * X'*Y; try (...

約4年前 | 1

回答済み
Multiplying f(x) with f(-x)
For polynomial funtions with coefficients in P, f(x)*f(-x) is a polynomial as well with coefficients Q that can be computed like...

約4年前 | 0

回答済み
Eigenvectors not changing with constant parameter
"Could someone figure out the issue?" But there is no issue beside thet fact that you expect something that not going to happen...

約4年前 | 0

| 採用済み

質問

answer orange badge abadonned?
For active members, the little orange badge is no longer displayed and will be abandonned? My "Editor" badge disappears when m...

約4年前 | 3 件の回答 | 0

3

回答

回答済み
Manipulating a multidimensional array.
Try this: kx = linspace(-0.5,0.5,15); ky = linspace(-0.5,0.5,15); [KX,KY] = meshgrid(kx,kx); alpha_R = 0.18851; M = lengt...

約4年前 | 1

| 採用済み

回答済み
fminsearch error 'Argument 3 must be an options structure'
You need to create options using optimset function

約4年前 | 1

| 採用済み

回答済み
Optimise comparing multidimensional matrices
I simply code by guessing what you have behind de scene. You better tell us exactly what are class/size of the variables in your...

約4年前 | 1

| 採用済み

回答済み
Undefined function 'num2Str' for input arguments of type 'double'.
correct spelling is num2str with a lower-case "s"

約4年前 | 0

回答済み
i have a single row vector contains 0s and 1s and want to convert every 3 bits into integer how can i do that??
x=[0 1 0 1 1 1 ]; bin2dec(char(reshape(x,3,[])+'0')')

約4年前 | 0

回答済み
Pass m-function as parameter in m-function
Here is how you pass a function handle (it can be mfile, pfile, mexfile, appfile, anything that can run under MATLAB) func1(val...

約4年前 | 0

| 採用済み

回答済み
Convert a Column Vector to Matrix
x = [1 2 3 4 5 6] y = reshape(x, 2, [])'

約4年前 | 0

回答済み
How to slice an array across multiple dimensions with two limit arrays?
This should work X=rand(6,6,6); A=[1 2 3]; B=[6 5 4]; cidx = arrayfun(@(i1,i2) i1:i2, A, B, 'unif', 0); Y = X(cidx{:})

約4年前 | 0

| 採用済み

回答済み
Function ISMEMBER indexes only the first value and leaves the rest
ismember returns in the first argument the logical array, not the index. If you want the firs index (idx will be empty if there ...

約4年前 | 0

回答済み
random bit to a block of some fix length?
x='01100010101001010100010001000001111111000101111' bl = 4; xb=x-'0'; % convert to binary array xb(end+(1:mod(-end,bl)))=0;...

約4年前 | 1

| 採用済み

回答済み
Select elements of a matrix using an array (of indices)
A=[164 101 2733 2801 323 410 20 24 556 494 498 345 ...

約4年前 | 0

| 採用済み

回答済み
How to find a cross section of a 'Boundary' plot with non planar data?
Assuming the plane is z=0 (otherwise you should so a solid coordinates transformation to bring to this assumption) You have to ...

約4年前 | 0

| 採用済み

回答済み
Finding change in direction
Your code will crash since indexing will be overflowed. Just an idea you might do the sign comparison of the entire array [r,...

約4年前 | 0

回答済み
Trying to understand the single-sided FFT
Multiplication by 2 for single side is just a convention. To me it doesn't have any solid backup. The convention is stated in pa...

約4年前 | 1

回答済み
Why is my if counter not working
Your for loop index is probably wrong, n should be scalar n = 1:2:10 ... for i = 1:n ... end or perhaps you want this ...

約4年前 | 0

回答済み
Create a matrix where every row adds to a number and within the matrix represents every possibility of the row combinations
A non recursive engine AllVL1 in FEX >> allVL1(4,3) ans = 0 0 0 3 0 0 1 2 0 ...

約4年前 | 1

回答済み
connect lines on scatter plot showing arrows
Try this quiver(xpre, ypre, xpost-xpre, ypost-ypre, 'off')

約4年前 | 0

| 採用済み