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bar graph
Rather than use |hold|, why not do h = bar(1); axis(...) outside the loop, then in the loop do set(h,'YData',i)

alrededor de 15 años hace | 0

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How can i store multiple data into same excel file ?
I'm going to assume that the issue is that you want to run this code again later (with different data), so you don't necessarily...

alrededor de 15 años hace | 0

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How to convert string to time?
If you want an actual decimal minute value: x = '04:55' y = str2double(regexp(x,':','split')) z = y*[1;1/60] (Leave off ...

alrededor de 15 años hace | 2

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New column
I think this does what you want: Price = randi(10,20,1) buy = [true;diff(Price)>=0]; idx = find(~diff(Price)); buy(idx+...

alrededor de 15 años hace | 0

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colorbar
You can change your colormap to have more colors. The default is 64. colormap(jet(128))

alrededor de 15 años hace | 0

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import time
You can use |textscan| to read arbitrarily formatted data from a text file. If you want to keep the values between the colons s...

alrededor de 15 años hace | 0

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Fliplr and flipud functions no longer accepts vectors
|ismatrix| is true for a vector or even a scalar -- everything in MATLAB is a matrix unless you force it not to be (eg a 3-D arr...

alrededor de 15 años hace | 0

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how to read a data file with textscan when the the data type is inconsistant
A simple hack workaround would be to read the first column as a string, then remove anything non-numeric from that string and co...

alrededor de 15 años hace | 0

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Definition of function
Are there any lines of code above the function definition line? That will generate that error message. For example: filen...

alrededor de 15 años hace | 0

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What should take the longest time to run in matlab?
Just to mess with you, there are some other subtleties about the way MATLAB handles passing data to functions, which will come i...

alrededor de 15 años hace | 0

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Select rows from txt file
How are you going to store the data once you get it? Do you just want the text? Or do you actually want to read in data? If t...

alrededor de 15 años hace | 0

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Lagrange Interpolation code
Hmm, maybe you should form a study group with <http://www.mathworks.com/matlabcentral/answers/3338-lagrange-interpolation-m buxZ...

alrededor de 15 años hace | 0

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loop
The |n| th row of the matrix variable |AF|. The colon stands for all indices, and MATLAB indexes by row-then-column. Hence, |A...

alrededor de 15 años hace | 0

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How to read information from a txt file header?
Assuming the header information is always the same format (or at least same number of lines): fid = fopen('data2.txt','rt'); ...

alrededor de 15 años hace | 1

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Solving nonlinear scalar ode's
Given that you have to use AB2 (with, apparently, a fixed stepsize) I going to take a guess that this is a numerical analysis ho...

alrededor de 15 años hace | 0

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texscan multiple variables
fmt = repmat('%f',1,30); d = cell2mat(textscan(fid,fmt));

alrededor de 15 años hace | 0

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Headers in Matlab
Perhaps <http://www.mathworks.com/help/toolbox/stats/datasetclass.html |dataset| arrays> are what you're looking for? The synta...

alrededor de 15 años hace | 3

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ring (annulis) patch?
How's this? The patch is a single object, but you have to add the edge lines separately in this approach (otherwise you see the...

alrededor de 15 años hace | 2

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Writing an M-file for an iteration of x=cos(x)
Check out <http://www.mathworks.com/matlabcentral/answers/1148-how-to-learn-matlab this discussion> for some suggestions on lear...

alrededor de 15 años hace | 0

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Reading a multi line string into a single string
You can read the whole contents of a file using <http://www.mathworks.com/help/matlab/ref/fileread.html |fileread|>. Then use <...

alrededor de 15 años hace | 0

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Can I call this plot as Contour plot?
What you're doing is called a parametric plot - x(t) against y(t) for a parameter variable t.

alrededor de 15 años hace | 1

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Curve fitting with no input give
Do you mean that you have data but no idea about the curve to fit? If so, there are nonparametric methods available, such as LO...

alrededor de 15 años hace | 0

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Converting an image with size of [X, Y, 3, double] to another image with size of [X, Y, 3, uint8]
Assuming the double image has values between 0 and 1, A2 = uint8(255*A1);

alrededor de 15 años hace | 0

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How to read multiple huge text files, the fastest way?
If you have to read it as ASCII, your best option is |textscan|, which will read directly into whatever numeric format you speci...

alrededor de 15 años hace | 0

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import tab and comma delimited dat file
I'm not sure if the formatting is exactly how it appears above, but you can probably iron out the kinks yourself. I did assume ...

alrededor de 15 años hace | 0

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Nonlinear regression
From the doc: "nlintool(X,y,fun,beta0) is a graphical user interface to the nlinfit function, and uses the same input arguments"...

alrededor de 15 años hace | 1

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Algorithm to match continuous variables
I'm not completely sure if you want just to extract a subset of data, or group all samples into a set of bins. The former you c...

alrededor de 15 años hace | 0

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MATLAB vs. Excel: Matlab seems to give better answer to exponential decay, anyone know why?
Excel is apparently doing a log of the y data then fitting a line. This approach is very sensitive to outliers. Change your |p...

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alrededor de 15 años hace | 4

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x and y axis labels
Ah, the old LaTeX interpreter trap. Is this what you're after: xlabel('$G\bar{r}_x$','FontWeight','bold','interpreter','late...

alrededor de 15 años hace | 0