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How to create variables in the command prompt space using a function
First of all, comments in MATLAB are given by %, not //. Second, which function are you calling first, and from where, and wh...

14年弱前 | 0

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How to export data from a GUI to Matlab Workspace?
In the code of the GUI, when you want to export the variables do: save guioutput This will save all of the variables in ...

14年弱前 | 0

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Best way to determine if number is triangular number?
istri = @(x) floor(sqrt(8*x+1))==sqrt(8*x+1); x = 1:20; idx = istri(x) x(idx)

14年弱前 | 1

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access outputs of functions with multiple outputs
There *is* a way to do it, but I am reluctant to share it because I don't think it is worthwhile to program this way. I cannot ...

14年弱前 | 2

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reading a song in matlab
Make sure that the file is in the current directory first, then: [Y,FS] = wavread('myfile.wma');

14年弱前 | 0

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for loop to make a taylor series
If you write it as: e^x = x^0/0! + x^1/1! + x^2/2! + .... + x^n/n! then you can see the pattern easier. I don't want to...

14年弱前 | 0

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2D Array Manipulation / Script
You can also use <http://www.mathworks.com/matlabcentral/fileexchange/24536-expand expand>, which is written to be more general ...

14年弱前 | 0

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Duplicate the value of a cell for other cells in a matrix
Here is an example; adapt it as needed. A = magic(10); % The array. N = randperm(numel(A)); % Random linear indices....

14年弱前 | 0

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Symbolic solve giving wierd roots
docsearch('rootof') Look at the documentation of SOLVE, scroll down to rootof.

14年弱前 | 0

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How can I plot a symbolic function or determine a finite and real starting guess for fzero?
If you have a function of one variable, you can use my <http://www.mathworks.com/matlabcentral/fileexchange/6924-newtzero newtze...

14年弱前 | 1

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Loops and Complicated Matrix Multiplication
Often times it is easier to figure out such a problem by looking at a simpler version where we can actually keep track manually....

14年弱前 | 0

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stem and set function: A question
set(z,'linewidth',6,'color','r')

14年弱前 | 0

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Find Function in MATLAB to Compare two vectors
Given your example inputs and outputs: % The inputs A = [1, 2, 3, 4, 5].' B = [2, 4, 5, 6, 7;10, 11, 13, 14, 15].' ...

14年弱前 | 0

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Matlab - convert vector to discrete function
You can fit a polynomial to U, or a spline or any function. We must know what the expected relation is, or at least see the gra...

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Heuristic solver for lambert W function?
X = solve('x*(2^x)=b/ln(2)','x'); x_b3 = subs(X,'b',3) % x when b=3

14年弱前 | 1

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Help with 'solve' function in MATLAB for numerical solution!
d = solve('x=(2^x)*b+c'); n = subs(d,{'b','c'},{2,3}) % Put 2 for b, 3 for c If you are doing the substitutions in a lo...

14年弱前 | 3

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Plotting a vertical line using ezplot
This will put a vertical line in the middle of the axes. Adjust as needed. LIM = get(gca,{'xlim','ylim'}); L = line(mea...

14年弱前 | 1

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Hello everyone, I would like to write a function to find the prime number from 0 to n . I would apreciate your help!
p = @(n) primes(n);

14年弱前 | 0

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Can't define functions in Matlab
At the command prompt, type: edit Now paste your code into the window that opens up. Then save it. From the commamd prompt ...

14年弱前 | 0

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Avoid for loops with if inside
idx = bsxfun(@minus,A(1,:).',B(1,:))<5; C(idx) = C(idx) + 1; It would help if you specified the sizes of A, B and C. I ...

14年弱前 | 2

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question about matlab code and function......
You might want to read the Getting Started section of the documentation. Also, why would you want the function to only work on ...

14年弱前 | 0

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name several curves within a loop
You could put a text on each curve. But placing the text could be tricky with that many curves on one plot. x = 0:.01:1;...

14年弱前 | 0

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construct a function which randomly change one bit a column
A = round(rand(4,4)); % The initial matrix. % Given A, use this to change one random element per column. [m,n] = size(A...

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How do you combine multiple commands into a single code for one execution?
Follow these steps. 1) At the command line, type: edit 2) Paste your code into the blank document you opened in ste...

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How to run m-files automatically ?
D = dir('*.jpg'); for ii = 1:length(D) % Put your processing code here. Call image names as below... fprint...

14年弱前 | 1

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Generate permutations of numbers
You can use my <http://www.mathworks.com/matlabcentral/fileexchange/11462-npermutek npermutek>. npermutek([0 1],2) a...

14年弱前 | 1

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A question on input and output arguments in a function, interesting.
Even a one-line function is possible in MATLAB. This is a valid function... function num = myecho(num)

14年弱前 | 0

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Purpose of guidata(hObject,handles)
This stores the variable named 'handles' in the guidata of the object with handle HObject. I assume you saw this in the Ope...

14年弱前 | 3

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Creating a white background behind a subplot that is placed over another sublot
I would simply use a UIPANEL. Here is some code that will run, based on your code. Note the last three lines: h=figur...

14年弱前 | 0

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ho to plot multy-axis with Two Y-axis in left hand side?
You can just alter the PLOTYY function: figure x = 0:0.01:20; y1 = 200*exp(-0.05*x).*sin(x); y2 = 0.8*exp(-0.5*x...

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