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ChristianW


Con actividad desde 2013

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M.Sc. Aeronautics and Astronautics Student in flow with MATLAB.
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assigning a a structured 2x2 matrix using a loop
M = 5; centroid = rand(M,2); detresp = struct('a',num2cell(centroid,2),'c','d'); or detresp = struct('a',cell...

casi 12 años hace | 0

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The function "nchoosek" is not working in my code
cnt{1}=[3;1;3;2;1;2] cnt{2}=[2;3;1;3;1;2] value = cellfun(@(x) nchoosek(x(x~=1),2),cnt,'un',0); or with loop ...

casi 12 años hace | 0

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How can I have editable text inside a listbox?
<http://www.mathworks.de/matlabcentral/fileexchange/24861-41-complete-gui-examples Matt Fig GUI Examples> Search for listbox ...

casi 12 años hace | 0

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Sharing Three Dimensional Array Variable Among GUIs
In a GUIDE its provided to use the handles structure. But, using global does also work. You need to declare the variable as g...

casi 12 años hace | 0

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Roulette Algorithm Probability Loop
To summarize the strategie: *You allways lose all your money.* This is for 37 slots, only one zero slot. bet0 = 5; % ...

casi 12 años hace | 0

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Reading many files in one loop
doc dir D = dir([myfolder 'my*file*name*.*']); files = {D.name}';

casi 12 años hace | 0

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How to make a signal vector?
S = [S1;S2]

casi 12 años hace | 0

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How to stop a for loop execution from GUI?(From Toolbar stop button)
You can write your flag in the |UserData|-property of the toolbaricon. ... set(handles.uitoolbar1,'UserData',0) for ....

casi 12 años hace | 0

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Calculate average of multiple matrices by reading an m.file
k = 0; while (reading file) ... k = k+1; match(k,:) = strcmp('Hello', out) end M = mean(match)

casi 12 años hace | 0

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How to add additional info to the data cursor?
function test_main % Plots graph and sets up a custom data tip update function fig = figure('DeleteFcn','doc datacursorm...

casi 12 años hace | 15

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Importing text from Excel sheets
Here's an example on how to use fprintf with cells: C{1} = sprintf('Hello\n'); c = {'A','B','C';1,2,3}; C{2} = sprint...

casi 12 años hace | 0

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Wrong way to index: Index exceeds matrix dimensions
max(Z) is greater then 2270?

casi 12 años hace | 0

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How do i plot a bounding box around the output of a Moving object algorithm?
With Image Processing Toolbox: doc regionprops An example: BW = imread('text.png'); imshow(BW) bb = regionprops...

casi 12 años hace | 0

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Plot legend with multiple fitresult curves
x = 1:10; y = sin(x); f = fit(x',y','cos(x+a)'); h1 = plot(x,y,'ok'); hold on h2 = plot(f); X = 1:0.1:20; %...

casi 12 años hace | 0

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Quadratic integration coding error
The trapz inputs are just points. But quad needs a function as input. x = 0:1:10; y = sin(x); A_trapz = trapz(x,y) ...

casi 12 años hace | 0

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open wav file error
myFile=[PathName,FileName];

casi 12 años hace | 0

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About isinteger command(confusion)
doc isinteger isinteger(int8(3))

casi 12 años hace | 0

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How can I create draggable lines in a BW-Mask in an image overlay?
This might be usefull for you: function test close all imagesc(peaks), axis off, axis image, hold on d = [10 25 20...

casi 12 años hace | 0

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How to use image sc and contour?
n = 20; % 2000 takes long calculation time fot contour X = randi(1000,n); [C,h] = contour(X,[400 600]); axis image se...

casi 12 años hace | 0

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Read image and save it using imwrite?
Input_folder = '.\'; % folder with big images Output_folder = 'c:\result'; D = dir([Input_folder 'image*_big.bmp']); ...

casi 12 años hace | 2

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for loop with stored variables
There are several ways. I would make for the Plantary Temperature (Te) a new function, and vectorize Albedo (A). Like this: ...

casi 12 años hace | 0

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From logical to binary ?
Try w=char(bin2dec(reshape(num2str(w),8,[]).')).';

casi 12 años hace | 0

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Nested for loop in parfor, indexing
You could use a seperated variable for the inner loop. On the example of x: X = zeros(M,N); %preallocate parfor i=1:M ...

casi 12 años hace | 0

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Help in Syntax of Eval and Sprintf
Y = cell(size(mydate1)); % preallocate for k = 1:length(mydate1) str = [mydate1{k} '::' mydate2{k}]; % Date String R...

casi 12 años hace | 0

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Apollo Capsule 3D Model
doc patch Depending on your model complexity, you could use 3D CAD software and save as *.stl. There's a function called rn...

casi 12 años hace | 0

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Elementwise diff() with an condition
X = {[1,2,4,5],[23,12,13]}; Y = cellfun(@diff,X,'un',0); B = 1.5; Ycut = cellfun(@(x) x(abs(x)>B),Y,'un',0);

casi 12 años hace | 1

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How to use an Xbox Controller in Matlab for real time signal processing?
With Simulink 3D Animation there is a <http://www.mathworks.de/de/help/sl3d/joystickinput.html Joystick Block>.

casi 12 años hace | 1

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I tried to solve this system of ODE and it took so long to give me results.
Pretty sure your function hang up in the while loops. I guess it should be IF instead of WHILE. while 2<r This is an en...

casi 12 años hace | 0

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logical indexing is usually faster than find
n = 1e6; r = rand(n,1); f = randn(n,1)+10; si = r>0.5; tic j = find(si); s1 = f(j); % with FIND ...

casi 12 años hace | 1

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trouble with latex font labels and legends when importing tiff figure on word 2010 or LyX
Use .emf for word if possible and try .ps for Lyx.

casi 12 años hace | 0

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