Evan

Sandia National Labs/University of Louisville/Georgia Tech

Last seen: 1年以上前 | 2012 年からアクティブ

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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 ...

9年弱前 | 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...

約9年前 | 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...

約9年前 | 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;...

約9年前 | 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...

約9年前 | 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...

約9年前 | 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...

約9年前 | 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...

約9年前 | 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...

9年以上前 | 0

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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 ...

9年以上前 | 1 件の回答 | 0

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

9年以上前 | 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...

9年以上前 | 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'}; ...

9年以上前 | 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...

9年以上前 | 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...

9年以上前 | 0

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

9年以上前 | 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...

9年以上前 | 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...

9年以上前 | 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...

9年以上前 | 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...

9年以上前 | 0

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

9年以上前 | 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...

9年以上前 | 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...

9年以上前 | 0

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

9年以上前 | 0

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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...

9年以上前 | 0

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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,'...

9年以上前 | 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 ...

9年以上前 | 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...

9年以上前 | 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...

9年以上前 | 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...

9年以上前 | 0

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Evan

Sandia National Labs/University of Louisville/Georgia Tech

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