Thomas

Last seen: 11ヶ月前 | 2011 年からアクティブ

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Love MATLAB :) Work with Wireless Sensor Networks, Medical Image processing (MRI,fMRi,DTI), High Performance Computing at UAB Professional Interests: Parallel Computing, Supercomputing, Wireless sensor networks

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Storing values from nested FOR loop (array only saves last run of results)
for i=1:4 for j=1:3 answerA(i,j)=i*1; answerB(i,j)=j*10; % tableA(i,:)=[answerA answerB] ...

約6年前 | 6

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how to find out if a number is even or not
You could perform a modulo division mod(4,2) % Even number ans = 0 mod(5,2) % Odd number ans =1 Answer wi...

約6年前 | 10

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Counting objects in an image
You could use techniques shown in many MATLAB image processing demos.

約7年前 | 0

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how to save a string as a filename?
Maybe something like this for number=1:10 file_name = sprintf('case study_#%d.txt',number); save(file_name,....

8年弱前 | 3

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Distributed and parallel computing without DCS
Hi Chuck, In order to perform distributed computing across multiple computers you need the DCS license. We have DCS running ...

9年以上前 | 1

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Creating sub-matrices using one matrix
Look at the examples given here <http://stackoverflow.com/questions/13091193/how-to-select-a-submatrix-not-in-any-particular-pat...

10年以上前 | 0

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matrix generation 1 to n*n or interval
n=10; a=1:n*n; out=reshape(a,n,n)'

11年弱前 | 2

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Finding structure array entries with certain values
You could use something like this strs={'1' '2' '3' '4'} ind=find(ismember(strs,'4')) >> ind = 4

11年弱前 | 1

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Datenum: how many seconds in a day?
IF my guess is right matlab considers every day as 86400 seconds.. only in leap years does datenum make sure an extra day is add...

11年弱前 | 1

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Not enough input arguments
Are you giving it u as an array? try running it like this.. works fine.. u=1:5; cost_function(u) output is J =...

11年弱前 | 0

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Delete duplicate rows from a large cell array
wit_dup={'2000-01-10 1:00' 'HCM' '268' '20' '260' '2345' '0' '90' '2000-01-10 1:00' 'HCM' '268' '20' '260' '2345' '0' '...

11年弱前 | 0

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Is it possible to save . mat <4095x1384x2 double> file to txt file?
You can save it as slices data1=data(:,:,1); data2=data(:,:,2); and then save or he alternative would be to use resha...

11年弱前 | 0

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How to read DICOM RT Structure?
Might want to try <https://github.com/ulrikls/dicomrt2matlab> or try RSInfo=dicominfo('RS.ZZ_YUNINN_.dcm'); dicom...

11年弱前 | 4

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İ need to switch red and blue colors in RGB picture. How i can do that? my version of matlab is R2013a
Similar question: <http://www.mathworks.com/matlabcentral/answers/100476> or ii=imread('1.jpg'); % load original ...

11年弱前 | 2

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Doing a plot within a FOR LOOP
some thing like this? clear for i = 0.04 : 0.01 : 0.06 B = -20000 + 57300*((1+i)^-20) figure() ...

11年弱前 | 1

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How can I make subplots larger?
Do you just want to make the figure taller? x=1:10; y1=x.^0.5; y2=x; y3=x.^2; y4=x.^3; figure1=fig...

11年弱前 | 4

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Undefined function 'acker' for input arguments of type 'double'.
acker is the old pole placement function using Ackerman's formula from the control system toolbox.. try which acker ...

11年弱前 | 0

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can anyone provide me the code for motion detection in a video????????
Many of them are available in file exchange <http://www.mathworks.com/matlabcentral/fileexchange/18151-motion-detection-in-a...

11年弱前 | 1

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how to get average of more than one (atleast 2288) images?
An example is given here <http://stackoverflow.com/questions/5689639/how-to-average-multiple-images-in-matlab/14222792#14222792>...

11年弱前 | 0

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How to use parfor for fast matrix calculations with different dimensions???
You do not need to use 'parfor' or even 'for' to get to what you are trying (i.e. find 1's in the matrix). Is there a specific r...

11年弱前 | 0

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How can I find the indices of a vector?
[r,c]=find(A>=0.123)

11年弱前 | 0

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Is it possible to downgrade MATLAB?
You should get access to earlier releases if you buy a current license. Mine shows me as far back as R11.1 available for downlo...

11年弱前 | 0

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swap columns of a matrix
You could also use out= fliplr(k_minus) This flips the matrix left-right <http://www.mathworks.com/help/matlab/ref/fliplr...

11年弱前 | 2

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I'm trying to make a function to create a chirp signal with a clip distortion, when I run the function, It won't play and just displays columns, where is the problem?
run your code as follows a=SignalGen(10,200,1000,5,3,100); % suppress output Signal sound(a) % to hear

11年弱前 | 0

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Surface area of a 3D-plot from a matrix.
I do not think MALTAB has a built-in function. (I might be wrong though) However a similar question has been answered here <ht...

11年弱前 | 1

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how to find elements in an array
x = 1:100; y = 201:300; a=[ 215 250 283]; c=ismember(y,a) x(c) should give you 15 50 83

11年弱前 | 1

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feval(symengine, 'partfrac' command error
You forgot the * between 14 and x feval(symengine, 'partfrac', 4/ (((x - 7)^2 + 4^2 )* (x^2+14*x + 65)))

11年弱前 | 1

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How to change Elements in Matrix per row depending on their size in reference to a particular Element (without loop)
A laborious way of doing it.. B=[A(1,:);A(3,:);A(4,:)]; B(B >=3)=3; C=[A(2,:);A(5,:)]; C(C >=2)=2; Out=...

11年弱前 | 0

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How do I reshape a dataset?
a= rand (2,4) size(a) b=a' size(b) Is this what you are looking for ? or b= reshape(a,4,[]); ...

11年弱前 | 0

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How to add a folder permanently to matlab path?
You can put the addpath statement to startup.m Heres how to create startup.m <http://www.mathworks.com/help/matlab/ref/startu...

11年弱前 | 3

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