# ChristianW

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M.Sc. Aeronautics and Astronautics Student in flow with MATLAB.

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**Feeds**

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...

ongeveer 11 jaar ago | 0

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 ...

ongeveer 11 jaar ago | 0

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 ...

ongeveer 11 jaar ago | 0

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...

ongeveer 11 jaar ago | 0

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; % ...

ongeveer 11 jaar ago | 0

Reading many files in one loop

doc dir D = dir([myfolder 'my*file*name*.*']); files = {D.name}';

ongeveer 11 jaar ago | 0

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 ....

ongeveer 11 jaar ago | 0

| accepted

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)

ongeveer 11 jaar ago | 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...

ongeveer 11 jaar ago | 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...

ongeveer 11 jaar ago | 0

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Wrong way to index: Index exceeds matrix dimensions

max(Z) is greater then 2270?

ongeveer 11 jaar ago | 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...

ongeveer 11 jaar ago | 0

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; %...

ongeveer 11 jaar ago | 0

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) ...

ongeveer 11 jaar ago | 0

About isinteger command(confusion)

doc isinteger isinteger(int8(3))

ongeveer 11 jaar ago | 0

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...

ongeveer 11 jaar ago | 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...

ongeveer 11 jaar ago | 0

Read image and save it using imwrite?

Input_folder = '.\'; % folder with big images Output_folder = 'c:\result'; D = dir([Input_folder 'image*_big.bmp']); ...

ongeveer 11 jaar ago | 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: ...

ongeveer 11 jaar ago | 0

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From logical to binary ?

Try w=char(bin2dec(reshape(num2str(w),8,[]).')).';

ongeveer 11 jaar ago | 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 ...

ongeveer 11 jaar ago | 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...

ongeveer 11 jaar ago | 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...

ongeveer 11 jaar ago | 0

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);

ongeveer 11 jaar ago | 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>.

ongeveer 11 jaar ago | 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...

ongeveer 11 jaar ago | 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 ...

ongeveer 11 jaar ago | 1

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.

ongeveer 11 jaar ago | 0

| accepted