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Evan


Last seen: 11 jours il y a |  Actif depuis 2012

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Obtaining corresponding pixel indices in perspective-corrected image
I managed to find a solution to this problem. First note that this applies to MATLAB versions R2014b and earlier. While I can't ...

environ 9 ans il y a | 0

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Fibonacci sequence, slightly different.
It seems to be quite close. You just need to make one small change. You should reference the seq variable using the index, k, no...

plus de 9 ans il y a | 0

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Extracting matrix diagonal with diag(A)
Does this fix your problem? a = eye(4,4) == 1; diag(a) While the *diag* function works fine, if you have a variable n...

plus de 9 ans il y a | 0

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Merge tables with different dimensions?
Does this example do what you need? A = randi(9,4,3) B = randi(9,4,5) C = randi(9,4,2) D(1:4,1:size(A,2)) = A;...

plus de 9 ans il y a | 0

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search for a code in a cell
key = [1 1 -1 -1] C{1} = [1 1 1 1];C{2}=[1 1 -1 -1];C{3}=[1 -1 1 -1];C{4}=[1 -1 -1 1] loc = find(cellfun(@(x)all(x == ke...

plus de 9 ans il y a | 1

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I need help creating a function for taking an array and reversing it and i have to use a for loop. I have looked online but i really dont know what i am doing?
There are built-in functions for this, such as *fliplr* and *rot90*. However, if you want to use a loop, think about the proc...

plus de 9 ans il y a | 0

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Difference Between a Number and Character Array
These links might be helpful for understanding data types in MATLAB, as well as classes in general: * <http://www.mathworks.c...

plus de 9 ans il y a | 0

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When zooming, 3D plotted data exceeds uipanel extent despite axes being clipped
While I'm able to replicate this in previous MATLAB versions R2012a, R2012b, R2014a as well as some releases prior to 2011, this...

plus de 9 ans il y a | 0

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Most Efficient Spreadsheet File
If Image Analyst's solution doesn't work for you, you might try *csvread*. Assuming you're able to save your data in .csv format...

plus de 9 ans il y a | 0

Question


Obtaining corresponding pixel indices in perspective-corrected image
I am attempting to warp an image taken from an off-center camera to produce an image that resembles the viewfield were it taken ...

plus de 9 ans il y a | 1 réponse | 0

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How to reverse a number?
x = 1234; s = num2str(x) - '0'; xr = polyval(s(end:-1:1),10)

plus de 9 ans il y a | 2

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User Defined input in form of a table
You can either import tabular data from excel using *xlsread* or create a GUI that contains a *uitable* with MATLAB. Creating yo...

plus de 9 ans il y a | 0

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Counting element length in cells.
Look into <http://www.mathworks.com/help/matlab/ref/cellfun.html *cellfun*> >> A = {'Piggy'; 'gue7352892'; 'hdufhe~jf'}; ...

plus de 9 ans il y a | 9

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switching pixel with defined colour in a matrix
If I is your image: I = imread('peppers.png'); R = I(:,:,1); G = I(:,:,2); B = I(:,:,3); Idx = reshape(randperm...

plus de 9 ans il y a | 1

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Random number generation after time interval
I'm assuming this program involves a loop. If so, is each iteration quick enough that it's sufficient to simply check how much t...

plus de 9 ans il y a | 0

Réponse apportée
Is it possible to make graphs like this in MATLAB?
Have you tried *boxplot*? http://www.mathworks.com/help/stats/boxplot.html

plus de 9 ans il y a | 0

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How to store user-generated text within a loop?
In order to store multiple strings, likely of different lengths, you will need to use a cell array. <http://www.mathworks.com/he...

plus de 9 ans il y a | 0

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How can i get neighbors from 3D array but in the same order as the matrix ?
One way to do it: A = rand(5,5,5); B = false(size(A)); B(3,3,3) = true; %Point around which you want to find neighbor...

plus de 9 ans il y a | 0

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how to ellipse fitting to connected object?
help regionprops This allows you to return the orientation, major axis length, and minor axis length of binary data with r...

plus de 9 ans il y a | 0

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How to draw a two y axis and one x axis graph . The Two y axis should arrange in top and bottom and x axis should position in left side of the plot
If *plotyy* doesn't work for your purposes, you can create two axes with the same position, then set the 'Color' property of the...

presque 10 ans il y a | 0

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code to form a matrix by selecting some elements in another matrix
Look into the *randi* function.

presque 10 ans il y a | 0

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Problem in plotting a summation
Try out the *cumsum* function. Also it's worth noting that all the functions/operators you need (factorial, ./, .^, etc.) can al...

presque 10 ans il y a | 0

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for loop for matlab files
% where N is the number of files for i = 1:N load(['M' num2str(N) '.m']) end This will change based on whether...

presque 10 ans il y a | 0

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Réponse apportée
How to write program to choose random numbers from given input set?
see *randi*

presque 10 ans il y a | 0

Réponse apportée
How to navigate through Struct/Cell from Matlab Gui?
For determining the datatype of the arrays selected by the user, see the *iscell* and *isstruct* functions. The *who* command ca...

presque 10 ans il y a | 0

Réponse apportée
Plot doubt: how to fill the squares.
Try using the *MarkerFaceColor* property. Example: x = 0:pi/32:2*pi; y = sin(x); z = cos(x); plot(x,y,'s',x,z,'...

presque 10 ans il y a | 0

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How to know time that spent matlab in solving problem?
help profile or help tic Running *tic* and *toc* will simply tell you how much time passed between the respective ...

presque 10 ans il y a | 0

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Easy for loop question
i must be a real, *positive* integer. Because i starts at 1, and you reference A(i-1,2), your first iteration will try to access...

presque 10 ans il y a | 1

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How to retain only the positive root of a quadratic equation?
help imag So, if you wanted to return only roots without complex parts: R_all = roots([1 1 0 1]); R_real = R_all(~i...

presque 10 ans il y a | 1

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How to accept an answer in a comment?
If you can't get them to re-submit it themselves, and if flagging doesn't work, I would just copy+paste it into an answer of you...

presque 10 ans il y a | 0

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