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What am I not seeing here
You are seeing the print out of length(a) then disp(i). I am thinking that this is a bug, or the parser is *_supposed_* to be s...

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merging two matrix into a single one
J = [1 2 3;0 0 0;0 0 0]; K = [0 0 0;0 0 0;4 1 7]; L = max(J,K)

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Include variables in matlab user input
Is this what you are after? a = input('Pick a letter: ','s'); b = input(['Now ask something about the letter ', a, '? '],'s...

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Round to shortest integer
x = 14464000000000000; % An initial value x = min(x,32768) % Limit the value to 32768 I am not clear on what you mean by,...

presque 15 ans il y a | 0

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Creating my own error within a program
Is your program a function? If so, then it doesn't matter what variable names the user passes, because your function will have ...

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Help with basic MATLAB syntax
sin(cos(eln25))+100*(55/7-1000*tan(.23)) Assuming eln25 is a variable with numerical value, or a function which returns a num...

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Return control form a function to the main program
Define default output variables before the return statement. function x = myx(A) if A/2 > 7 x = []; re...

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Matlab is confused between line (function) and line (variable)
In addition to Jan's sage advice, you misplaced an apostrophe: OutputChannels = 1; line = [5 21]; Nameyout=[repmat('R...

presque 15 ans il y a | 1

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Basic question: how to find range of index values
mydata = [1 1 2 3 4 5 6 1 4 4 4 4 4 4 4 1 45 67 8 9 4 4 4 4 4 1 36 2 4 4 4 3 1 1 18 98 99]; findstr(mydata,4*ones(1,7)) Th...

presque 15 ans il y a | 3

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compare string
If you want to compare the name of the file, use the result returned from UIGETFILE. Of course if this will be used later, you ...

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Orientation of ellipsoid
See the help for the <http://www.mathworks.com/help/techdoc/ref/rotate.html ROTATE> function. For example: [x, y, z] = ellip...

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Calling a variable from a variable
I don't understand why you would want to do this, but here is a way to automate it. clear all % Fresh start... a = [1...

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GUI handles problem... throughout code it vanishes!?
GUIDATA does not update the handles structure, but stores the handles structure in the figure's applicationdata. The handles st...

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GUI edit text and msgbox problem .. what do I miss
This works: input = get(handles.koefm,'String'); %get the input from the edit text field % No need to convert to number....

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need a help...simple question
Yes you can do this. Any M-file can call any other M-file as long as they are in the same directory or on the path. For exampl...

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Please need help to detect the error in my code...
The error is that you are indexing into the array U with 0. There may be logical errors involved as well. You have nested loop...

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simple MATLAB question ...
MATLAB indexing starts at 1, not 0. n = 5; U = zeros(n); % Pre-allocate the memory. for a = 1:n for b = 1:...

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??? Subscripted assignment between dissimilar structures.
It sounds like you are running a script instead of a function? If so, my guess is that with a clear workspace your code creates...

presque 15 ans il y a | 0

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How do I start running timer?
Use the <http://www.mathworks.com/help/matlab/ref/start.html START> function. I recommend you read the linked doc and look at o...

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In Line
If you open the file in wordpad, you should see it vertical. To make it look vertical in notepad, use: %d\r\n as the form...

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Assigning each column of a matrix to a cell
As an example: A = round(rand(6,3)*20) B = round(rand(6,3)*-20) C{1} = mat2cell(A,size(A,1),ones(1,size(A,2))); C{2} = ...

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Two colormaps on one colorbar: one colormap covering all z data and the other covering a key region
Here is an example: % Start by making the colormap CM = bone(1000); CM(200:300,:) = jet(101); colormap(CM) % Set ...

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Trouble passing guidata to new .m files
In order to use GUIDATA, you need the handle of the GUI. So to get the guidata of a figure with handle H, GD = guidata(H); ...

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Set x-axis limits using xlim AND autoscale y-axis
Calling: axis tight Does reset the axes limits to the range of the data, as documented. So why is it that you are calling t...

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Search for sound clip within larger sound clip
Here is an example: % Load three sound clips. y = load('train'); y2 = load('gong'); y3 = load('handel'); % Make a new...

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How to separate specific data from a larger data set
If your array is called A, then: B = A(:,A(9,:)==3); % Take columns of A which have a 3 in row 9.

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Error: Inner matrix dimensions must agree.
omega1 is 1x20 t is 1x1001 How do you recommend to multiply them?? You could use this: u10 = a0 + sum(bsxfun(@times,ak...

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Finding integers in an array.
V = [nan;nan;9;nan;6;7;nan;9] % An example to work with... idx = find(V==V,1); % Location. nan never equals nan... val ...

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How could I cut a matrix into subgroups?
A = round(rand(10,4)); B = mat2cell(A,[2 3 4 1],[2 2])

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Putting commas and colons
x = rand(3,3,3,3,3,3,3,3); Y = repmat({':'},1,7); x(Y{:},2)

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