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Data sharing between two GUIs
You can use setappdata and getappdata http://www.mathworks.com/matlabcentral/answers/95443

environ 12 ans il y a | 0

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IF statement inside a push button
Assuming rest of the code is right mon1= str2num(get(handles.m1,'string')); The first thing I'll think is that you're get...

environ 12 ans il y a | 0

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How to pick an integer in a box using up and down arrows in a gui
You can use button with symbols + or -, and add functions like adding or subtracting as a feature. Something like this (very ...

environ 12 ans il y a | 1

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help with numerical integration
First thing: what are you trying to do with y and r? Your r will be empty as the last value in defining r is a vector. Can yo...

environ 12 ans il y a | 0

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Finding Mean of a repeated entries Using Matlab.
b = [u,accumarray(ix,zz(:,1))./accumarray(ix,1)]; The second accumarray will be (ix,1) not (ix,2)

environ 12 ans il y a | 1

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How to merge different customized figures together?
set(hFig, 'Position', [100 250 300 5*80]); for jj = 1:5 h1 = subplot(5,1,jj); % hAxes = set(h1,'XTick',[-1:1:...

environ 12 ans il y a | 0

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beginner questions about symbols used in formula
The fullstop (.) operator is for element-wise operation. For example: A = [1 2 3 4]; B = [5 6 7 8]; AS you can see t...

environ 12 ans il y a | 1

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problem using the find function
row and col are the indices in the matrix which have the value you need. Find function just finds the indices which satisfy the...

environ 12 ans il y a | 0

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Call a matrix in a matrix
You can have cell like this: B = rand(3); C = rand(3); A{1} = B; A{2} = C;

environ 12 ans il y a | 0

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Vector Equation with scalars?
a = 3; b = 4; x = -3:0.2:2; y = 8*(a^2)./(x.^2+b^2);

environ 12 ans il y a | 0

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how to write an equation with different period of time
w_t = [25*T 50 250-50*t]; t_range = [0 2 4]; W = w_t(find(t > t_range,1,'last'));

environ 12 ans il y a | 0

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How do I get the Command Window to recognize variables created in a function?
Because you have to do something like this on the command window: [K,T] = KTBC(n) KTBC is a function that take an input ...

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How to use the "Input" command-- specific problem help
The input command ask for a value from the user, for example A = input('Enter value for h: ') will show on command prom...

environ 12 ans il y a | 0

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How to resolve ODE system in Matlab using numerical method Runge-Kuta?
First You'll have to make a function for your problem. This function take (time and Y) and will return dy function dy = myf...

environ 12 ans il y a | 0

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how to do a graph
m = zeros(30,1); a = m; for i=1:30 m(i) = 400*(1.1^i); a(i) = 120*(1.2*i); end plot(m); hold on; plot(1:3...

environ 12 ans il y a | 0

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

environ 12 ans il y a

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set limits using xlim for strings
set(gca,'XTick',1:12,'XTickLabel',{'Jan','Feb','Mar','Apr' .... etc})

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Why do I get an 'Index needs to be positive or logical' error?
Sometimes in matlab, when doing floating point operations which should result in an integer, deviate from it slightly. For examp...

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Replace specific numbers in a matrix
Lets say your matrix is called A, then A(A>90) = Inf; That simple :)

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Transforming vector into triangular matrix
Lets call it A Then A_new = repmat(A,1,48); A_new = tril(A);

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Big O Complexity for Matlab code - Sum of Matrix Operation
Matlab sum without specification of dimension, for a matrix, will be for the column. However for a vector, either row or colu...

environ 12 ans il y a | 0

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Help with the output of my function
This is because when you input t as a vector, unless all of the values in vector satisfy the condition, it will not go through a...

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save matdata1 Error using save Unable to write file matdata1: permission denied.
This might be because you dont have permission to write in that folder. Try a different directory and see if it still doesn't w...

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How can I calcuate the distance from two selected points?
imdistline Matlab documentation: http://www.mathworks.com/help/images/ref/imdistline.html

environ 12 ans il y a | 1

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c=(exp((-z^2)/(2*sigma^2)))+mnoise
mnoise = 0.02*randn(251,1);

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How can I solve a simplest order 4 differential equation by 4th order Rung Kutta in Matlab?
See this: http://www.mathworks.com/help/matlab/ref/ode45.html There are few examples there as well to help you through

environ 12 ans il y a | 0

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Replace zero in a matrix with value in previous row
Lets say your matrix is A [m,n] = size(A); An = A'; valx = find(~An); % This will give you zeros elements linear inde...

environ 12 ans il y a | 0

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Changing excel range reference
Your xlRange will produce string 'sRowRef:lRowRef' not 'D2:D49'. You should try: xlRange = [sRowRef ':' lRowRef];

environ 12 ans il y a | 0

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how can I copy multiple Matlab.fig files, each with multiple subplots, into a single plot
You need to get handle for all the subplots in each figure. % First open a new figure hh = figure; % Open First F...

environ 12 ans il y a | 0

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how to jump from one box to another in Matlab GUI?
Setting tab order: http://www.mathworks.com/help/matlab/creating_guis/setting-tab-order.html http://www.mathworks.com/help...

environ 12 ans il y a | 0

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