Beantwortet
help to multiply matrices in succession
% For example: C = randi(10,2,2,3) A = cumprod(C,3) Or perhaps you meant: A(:,:,1) = C(:,:,1); for ii = 2:s...

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
How to remove the blue toolbar around the MATLAB figure.
figure('menubar','none')

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
Specialized sorting of array while preserving order
% Your original array a = [19 21 12 -15 18 1 22 11]; % Now the method: L = length(a)/2; [~,J] = sort(a); % For ...

etwa 13 Jahre vor | 1

| akzeptiert

Beantwortet
Edit plot in a GUI
# What edits are you wanting the user to make? # Are you using GUIDE or an M-file?

etwa 13 Jahre vor | 0

Beantwortet
Need help figuring out what I am doing wrong with my graph
What is the difference between the two graphs? The spaces between the bars? The title? The boldness of the lines? Be more sp...

etwa 13 Jahre vor | 0

Beantwortet
What is the correct way to use arrays with function inside for loop?
If you want to hold y as a vector, then for every x(i) in the loop your function call will return a vector. You cannot store a ...

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
Why won't my GUI code work!?
What is in the popup menu? To see this, take the semicolon off of the line where you retrieve the string, like this: str...

etwa 13 Jahre vor | 0

Beantwortet
Some issues with a basic while loop problem, help appreciated
Try this out. product=1; n=0; while product <= 500 num(n+1)=input('Enter a positive number '); ...

etwa 13 Jahre vor | 1

| akzeptiert

Beantwortet
Determination of y coordinate of a curve that intersects x axis ?
Where the curve intersects the x-axis, the y-coordinate is zero. No need to do anything with MATLAB.

etwa 13 Jahre vor | 1

Beantwortet
how to change value of xlswrite array using one-item vector
Here is an example of how to manipulate strings in a loop... Str = 'A'; for ii = 1:5 disp(sprintf('A%i',ii)) ...

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
How can I plot a 3D histogram using hist3 with log scale?
x = 1:20; y = 2*x; hist3([x' y']); S = findobj('type','surf'); ZD = get(S,'zdata'); ZD(~ZD) = .1; set(S,'zda...

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
Unwanted mesh overlapping with surface
set(gcf,'renderer','zbuffer') % Or painters This is yet another opengl problem...

etwa 13 Jahre vor | 1

| akzeptiert

Beantwortet
error checking in matlab
When asking a question, you need to explain what you post. What is m and n? Are they supposed to be the size of x, like: [m...

etwa 13 Jahre vor | 0

Beantwortet
move a marker from one position to another in a curve plotted in a graph
Have you considered using the data cursor? plot(1:10) datacursormode on Now click on the line then use the arrow ke...

etwa 13 Jahre vor | 0

Beantwortet
Plotting two loglog y-axes
AX = plotyy(x,y1,x,y2); set(AX,'yscale','log') % And maybe xscale too?

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
make column in a matrix: 1,1,1,2,2,2,3,3,3 etc
A(:,2) = reshape(cumsum(ones(3,7),2),21,1); or A(:,2) = floor(linspace(1,7.7,21));

etwa 13 Jahre vor | 1

Beantwortet
switch function case{name}
This might be a case where a little pushbutton input GUI would be of service. For exmaple, save this as gui_input then call it ...

etwa 13 Jahre vor | 0

Beantwortet
what does this code mean?
It appears to be finding the ratio of the mean values of two 15 element square subarrays, each from a different array.

etwa 13 Jahre vor | 1

Beantwortet
Point at which max occurs
It is always a good idea to read the doc for any such question: doc max docsearch('maximum value') The two output cal...

etwa 13 Jahre vor | 2

| akzeptiert

Beantwortet
Replace percentage of existing values with new value
B(randperm(16,4)) = 5

etwa 13 Jahre vor | 0

Beantwortet
Simplifying boolean function using boolean algebra
>> syms A B C D >> simplify((1-A)*B*C*D + A*(1-B)*C*(1-D) + A*(1-B)*C*D +... A*B*(1-C)*D + A*B*C*(1-D) + A*B...

etwa 13 Jahre vor | 0

Beantwortet
How to get a very small value rather than 0?
Use the symbolic toolbox if you need more precision than double.

etwa 13 Jahre vor | 0

Beantwortet
How can I link a scroll-bar GUI with the mathematical code I have written?
Here is an example GUI that does something similar. You should be able to adapt it fairly easily... function [S] = gui_s...

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
How can I make a string entered in an "Edit Text" box become a variable?
Here is one example that shows the process of manipulating data from edit boxes. function [] = gui_edits() % How to ...

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
Who do I create a sequence of matrices?
This will do the job. Note that all of the matrices are there, but _they are in a different order_. You can figure out how to ...

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
Create a loop which fills numbers 1-7 into matrix until matrix length reached
Andrei has shown you a preferred method. However, in answer to your original question, here is one way to solve it with a doubl...

etwa 13 Jahre vor | 0

Beantwortet
From 2 vectors of n elements To n points
P = [A,B]; Now point 1 is P(1,:). Point 2 is P(2,:), etc.

etwa 13 Jahre vor | 0

Beantwortet
Number of zeros in a matrix
The number of zeros in the matrix A is: sum(~A(:)) So we can make this a function: f = @(x) sum(~x(:)); Now test...

etwa 13 Jahre vor | 0

| akzeptiert

Beantwortet
Is there a better way to randomly generate a Doubly Stochastic Matrix?
This looks promising. I have kept some notes in the comments so you can see what I was doing... There are three lines of cod...

etwa 13 Jahre vor | 1

| akzeptiert

Beantwortet
I need to know how matlab do A(B) where A and B are 2 vectors
I believe that these basic things are done just like you show, but in *compiled C-code.* Thus it is much faster that using inte...

etwa 13 Jahre vor | 0

Mehr laden