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sortrows
sortrows(I,-1)

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How should I scratch this ticket?
function [R,cnt] = winning_numbers() % Generates 6 winning numbers on [1 25] and returns a seed to the % twister algori...

alrededor de 15 años hace | 2

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what does {:} mean?
When used alone, it means to display all contents of a cell array. C = {magic(3);'how';rand(1,2);'pizzaz';magic(8)}; C{:}...

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Attempting to rearrange a 3x3 "magic" matrix
If it must be done using storage techniques (as you seem to be suggesting), simply work your way down the matrix. M = magic(3...

alrededor de 15 años hace | 0

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help me please
Thanks for showing some work. Here is how one could approach the first task: n = 10000; m = 100; PROB = zeros(1,m); f...

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GUI picture is already loaded in axes when GUI opens
In the gui_OpeningFcn, put: cla reset(gca) % Should undo the zoom.

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plot of a string vector vs numeric vector
y=[1 2 3 4 5 6] x=['a','b','c','d','e','f'] plot(y) set(gca,'xticklabel',x.')

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Matrix/Image Merging
Kyle, what to do when multiple matches are found in B, since your example B has duplicates? % % % % % *EDIT* In response ...

alrededor de 15 años hace | 1

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guidata doesn't work (the way I expected it to)
The handles structure and the stuff stored in GUIDATA are not the same thing. If you want to be able to store new stuff in a st...

alrededor de 15 años hace | 0

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Adding new fields to a dataset array?
tmp.ID(1:5) = {'100'}; % If 5 is the size you want.

alrededor de 15 años hace | 0

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Beginner's roblems with arrays
I cannot see a clear pattern since you are setting timestep(3,T(1,2)+1:T(1,3)) = V(1,2); Now if it was THETA(2), that we co...

alrededor de 15 años hace | 0

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euclidean distance,output
You could make a little function: function y = mydist(x) % Takes a three digit binary string argument. switch x ca...

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reshaping
A = [1 0 1 0 0 0 1]; B = [1 1 1 0 0 0 1]; s = reshape([A;B],1,[])

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Help in solving an integral using MATLAB
f = @(x,y)(1./((3.11e-6)-((2.25e-6).*(((1-((x.^2)./(1e-8))).^2).*((1-((y.^2)./(1e-8))).^2).*(1+((1.1e-8).*(x.^2))+((1.1e-8).*(...

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index exceeds matrix dimensions??
while a<=size(dH_df,1) && dH_df(a,b)<0.80 %line 199 If you want to find the row position of values between 0.80 and 0.85, ...

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I set up a GUI with guide, but the input variables are not getting set.
Do you mean you want to pass parameters to set the initial of, say, an editbox or two? If so, you can access anything passed in...

alrededor de 15 años hace | 0

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File name is too long using IMREAD in GUI
I assume your error is on the line defining I. Put this right before that line and look at what is being passed. You are likel...

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Setting Array Value
Another: A = repmat([1,3,1,7],3,1) % change the 3 to 5 to get 5 rows, etc...

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Finding a minumum range of sequential values
What else does your data look like? Is it ones and zeros? Integers only? A single row vector, or matrix? Give all the detail...

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Integration problem with a power/time curve
trapz(x,y) should give you W-Day. So take that answer and multiply by 24.

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plotting selected lines from a matrix
I still think you meant to plot the columns, not the rows. But this works for me: test = repmat(magic(3),[1 1 4]); te...

alrededor de 15 años hace | 1

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Splitting a string of numbers and '|'
str = '1 | 2'; S = regexp(str,'\d+','match') Now S is a 1-by-2 cell array. strcmp(S{1},'1') strcmp(S{2},'2')

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Manipulating graph interactively
I am not familiar with this function, but you could put a slider in the same figure with the axes and have the callback for the ...

alrededor de 15 años hace | 0

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waitbar + surf functions. are they incompatible?
From the help for WAITBAR (always a good place to look with any funciton!), we have this: h = waitbar(0,'Please wait...'); % ...

alrededor de 15 años hace | 0

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Cut and re-join strings
Rather than using a verbal description, show us what you want. For example, if you start with these: pat = 'MATLAB'; st...

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Using handle graphics for more global variables
G = guidata(gcbf); % Get the application data G.newvariable = 5; % Store new variables in this data. G.newvariable2 = ...

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Update Graph With Data Input
You need to put the code which updates the plot in the slider callback. After this code, put a call to DRAWNOW.

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saving or not matrices
if ~all(isnan(A(:))) % Do the saving. end But it seems to me that *_if_* the only source of nans is from when you rep...

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Matlab function
If you have an explicit function of one variable, you might have luck with a Newton's method <http://www.mathworks.com/matlabcen...

alrededor de 15 años hace | 1

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How do I round to the nearest arbitrary, enumerated value in MATLAB?
One approach: roundTargets = [0 2.7 8 11.1]; v = [0.1 2.2 1.6 7.3 10]; vRounded = interp1(roundTargets,roundTargets,v...

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