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ChristianW


Aktiv seit 2013

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M.Sc. Aeronautics and Astronautics Student in flow with MATLAB.
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  • First Submission
  • 3 Month Streak
  • Knowledgeable Level 4
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Beantwortet
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...

fast 12 Jahre vor | 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 ...

fast 12 Jahre vor | 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 ...

fast 12 Jahre vor | 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...

fast 12 Jahre vor | 0

Beantwortet
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; % ...

fast 12 Jahre vor | 0

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

fast 12 Jahre vor | 0

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

fast 12 Jahre vor | 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 ....

fast 12 Jahre vor | 0

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Beantwortet
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)

fast 12 Jahre vor | 0

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Beantwortet
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...

fast 12 Jahre vor | 15

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Beantwortet
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...

fast 12 Jahre vor | 0

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

fast 12 Jahre vor | 0

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Beantwortet
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...

fast 12 Jahre vor | 0

Beantwortet
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; %...

fast 12 Jahre vor | 0

Beantwortet
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) ...

fast 12 Jahre vor | 0

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

fast 12 Jahre vor | 0

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

fast 12 Jahre vor | 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...

fast 12 Jahre vor | 0

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Beantwortet
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...

fast 12 Jahre vor | 0

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

fast 12 Jahre vor | 2

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Beantwortet
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: ...

fast 12 Jahre vor | 0

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

fast 12 Jahre vor | 0

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Beantwortet
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 ...

fast 12 Jahre vor | 0

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Beantwortet
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...

fast 12 Jahre vor | 0

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Beantwortet
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...

fast 12 Jahre vor | 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);

fast 12 Jahre vor | 1

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Beantwortet
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>.

fast 12 Jahre vor | 1

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Beantwortet
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...

fast 12 Jahre vor | 0

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Beantwortet
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 ...

fast 12 Jahre vor | 1

Beantwortet
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.

fast 12 Jahre vor | 0

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