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Sort Group Data Trends
Anthony, here's a solution relevant to my comment above. Note that there are in fact *4* groups: 7k, *8k*, 11k, and 15k. nu...

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square root of sum of squares on portions of cell arrays - Matlab Noob
out5 = {[0;0],[0;-162],[-54;72]} cellfun(@(vec)hypot(vec)*((-2*double(vec(1)<0))+1),out5) or cellfun(@(vec)sqrt(su...

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Comparing strings with and without ' '
Hi Mini, first I'll make some strings myStrings = {'''Word''', 'Word'}; >> myStrings{1} ans = 'Word' >> myStrin...

alrededor de 11 años hace | 0

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Pixel position of circle on image
Sangeeta, does this answer your question: center = [25 30]; %XY location of circle center radius = 15; matSize = 50; ...

alrededor de 11 años hace | 0

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How to move an object from one plot to another inside a GUI using GUIDE
Vivekram, you can change any handle graphics "Parent" property. Here's a fully working example: function F = tmpfunc() ...

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Pregunta

Silhouette outline of polygon surface
I'm trying to get the outline of a triangulated 3D surface projected onto the XY plane. Here's an example. First, let's get a ...

alrededor de 11 años hace | 1 respuesta | 0

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writing large 3D .mat file into a .xls file
Salam, Here's some code that will at least get your data into excel in some form. You're right that excel has the <http://off...

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Solving a system of equations in matlab
Hi E, There's a main issue that causes your problem here. Firstly, imagine that you had got inside your function _functionfil...

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delete certain elements in a matrix
In a loop? Not really. All at once? Absolutely. DATA = rand(50,5); rowsToDelete = [1,6,11,21,26]; DATA(rowsToDelet...

alrededor de 11 años hace | 3

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Experiences with release 2013a
As far as the help docs go, one issue that I had with the 2012b changes was the loss of context once you were reading a page (or...

alrededor de 11 años hace | 1

Pregunta

Experiences with release 2013a
In the spirit of <http://www.mathworks.com/matlabcentral/answers/48070-experiences-with-release-2012b 2012b>: Did you try 201...

alrededor de 11 años hace | 5 respuestas | 0

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Adding a line to a plot without normalized coordinates
You were so close: figure scatter([0 10 20 30 40],[3 5 3 2 9]); hold on plot([0 40],[15 15],'-', 'Color','r') I...

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How can I automatically save and index data from an internet database at a specified interval
MATLAB is reasonably well suited to do all the things you're looking for. Check out, for example, the <http://www.mathworks....

alrededor de 11 años hace | 0

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Find unknown from the equation with given value
Hi Sheryl, If you have the Symbolic Maths toolbox, you can do something like: *Step 1*: Set up your equation. Note that you ...

alrededor de 11 años hace | 0

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plotting evenly spaced lines across object
Hi Jakub, I think this does exactly what you're looking for. I've commented the code so it's easy to follow. Note that I've u...

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import date from matlab to ms excel in the form 'HH:MM PM' using xlswrite
Hi Jovanie, The trick is to make sure excel receives a date in a format that it recognises as a date, and then let _excel_ ha...

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how to convert cell datatype into uint8?
Hi Sivakumaran, A *cell* datatype is simply a container for _other_ datas. There is a function called *cell2mat* which will u...

alrededor de 11 años hace | 0

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How to search for a specific string and only display the sentences that contains it.
Hi Sam, *regexp* is the most flexible way to go: testStrings = {'some text with hello','more with hello','nothing here',...

alrededor de 11 años hace | 0

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Spacing in a heading for a table. (fprintf)
Hi Thomas, try this: fprintf('%11s%12s%12s%12s%12s%12s\n', 'AppNumb', 'gender','gpa','exp','lines','(bonus)'); fprintf('...

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How to get the tag name?
To find the tag of axes1, you can just get it directly: Tag = get(handles.axes1,'Tag') However I would expect that the c...

alrededor de 11 años hace | 1

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Matlab question for cantilever beam
Hi Caroline, The problem is here: x= 0:0.1:L; U(x)= F./E.*I.*(x.^3-3.*L.*x.^2); I think you simply mean: x= 0...

alrededor de 11 años hace | 0

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How Gradient is calcuted
Hi Tinkul, It is probably clearer if you call your variables *z* and *c* different names such as *dx* and *dy*. This is becau...

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Solving constrained non linear system using fmincon doesn't work
Hi Pi Pi, Two things. Firstly, your specific error: User supplied objective function must return a scalar value. com...

alrededor de 11 años hace | 1

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Adding values in a for loop
Hi Andy, I'm not entirely clear what you mean by "output", but I'll presume that you mean the value assigned to the *g* varia...

alrededor de 11 años hace | 2

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interpolating the 2d line to make the new coordinates equi-distant
Hi Payam, try this: pathXY = [0 0; 1 1; 10 2; 12 3] stepLengths = sqrt(sum(diff(pathXY,[],1).^2,2)) stepLengths = [0;...

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How can I vectorize/LUT this for loop ?
Hi Louis, This one's got a nice solution using *sub2ind* that lets you do the whole thing at once without a loop: img = ...

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How do I store a series of 5*5 arrays into a multidimensional array?
Bob, here's a fix to your loop: Agray=imread('rice.png'); [ar,ac]=size(Agray); v1=5; v2=5; r=ar-v1+1; c=ac-v...

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How to determine if two cones with vertices at origin, intersect?
Hi again Doc, First thing you can do is check the dot product between the normal vectors of both cones' planes. If the dot pr...

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Zero-filling matricies but different dimensions
Hi Bran, I think this is what you're trying to do: A = [1 2 3; 4 5 6; 6 7 8; 11 12 13] B = [1 2 3; 4 5 6; 11 12 13] ...

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Finding a circle enclosing data points in a tilted plane
Hi Doctor61, First, from your previous posts and this one I see that you're doing lots of stuff with 3d geometry. I think tha...

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