Ned Gulley

Last seen: Today | Con actividad desde 2011

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How to get data from web?
URLREAD expects US-style usage of commas and stops in numbers. So in a number like 150,228.17 it will ignore the comma and retur...

más de 7 años hace | 0

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Is it legal to publish the source code of Matlab's toolbox functions?
In general, just keep in mind that it’s not okay to take code from MathWorks products and give it away, whether through MATLAB A...

casi 8 años hace | 11

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How to import Excel data from a spreadsheet with cross-file references?
I have an Excel spreadsheet, call it Spreadsheet A, that I want to read into MATLAB. The Import Tool works well for this. Exc...

más de 9 años hace | 2 respuestas | 0

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regular expressions resources and regular expression problem
Another way to get good at regular expressions is to practice on Cody with <http://www.mathworks.com/matlabcentral/cody/?term=ta...

más de 11 años hace | 1

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Single title spanning a nxn subplot
You might want to try <http://www.mathworks.com/matlabcentral/fileexchange/7772-suplabel suplabel> from the File Exchange.

alrededor de 12 años hace | 0

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Function to format number as currency?
Using SPRINTF is the way to go, but getting the commas right is tricky. I turned this into a question for Cody to see what folks...

más de 12 años hace | 1

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How to separate this DNA sequence?
Here's a simple way to chunk your DNA up into codons. Then you can just pull the rows off to get each triplet. >> sequence =...

casi 13 años hace | 2

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Miller Cylindrical Projection
One option is to use the <http://www.mathworks.com/products/mapping/ Mapping Toolbox>, which has a function to do exactly this p...

casi 13 años hace | 0

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How do I get a parameter to resolve when following the '%%' section header definer while using 'publish' command?
Publishing using cell mode markup doesn't permit passing parameters in the way you describe. Section heads can't contain paramet...

alrededor de 13 años hace | 0

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getting the variable size value
To find the size, use <http://www.mathworks.com/help/matlab/ref/size.html |size|>. [m,n] = size(X) m = size(X,dim) So t...

más de 13 años hace | 0

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Colouring stacked bar chart
Try Brandon Levey's <http://www.mathworks.com/matlabcentral/fileexchange/24021-hatch-fill-patterns-plus-color-invert Hatch fill ...

más de 13 años hace | 0

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Passing data between two different GUI windows
Here's a tricky non-Guide way to do it. Change the data in the text box and press return to plot the data in figure 2. % Ma...

más de 13 años hace | 0

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Can one suppress the display of dataset objects triggered by mouseover (datatips)?
Mike's blog may be of service here: <http://blogs.mathworks.com/desktop/2008/01/28/exploring-your-data-with-datatips/ Exploring ...

más de 13 años hace | 0

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Decreasing scale on graphs
Is this what you're looking for? plot(Times,TDCall) set(gca,'XDir','reverse')

más de 13 años hace | 0

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How do I read Text from HTML file ?
Try something like this: url = 'http://www.example.com/'; html = urlread(url); % Use regular expressions to remove undesi...

casi 14 años hace | 10

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How to implement a neural network feedforward backpropagation network?
A quick Google search turned up this MATLAB-based approach: <http://alumni.media.mit.edu/~faaborg/research/cornell/hci_neuralnet...

casi 14 años hace | 0

Pregunta

How do I write a good question for MATLAB Answers?
I want to get fast and accurate help with my question. What information should I include in the question? How should I phras...

casi 14 años hace | 5 respuestas | 12

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Shortest Path
<http://www.mathworks.com/matlabcentral/fileexchange/?dir=desc&sort=downloads&term=authorid:90537 Joseph Kirk> has some files on...

casi 14 años hace | 0

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Simple example which explains contour plotting
Try these pages in the documentation for <http://www.mathworks.com/help/techdoc/creating_plots/f10-2524.html contour>.

casi 14 años hace | 0

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Can we "Watch" Answers?
Take a look at Randy's answer to this question: <http://www.mathworks.com/matlabcentral/answers/233-does-matlab-answers-provide-...

casi 14 años hace | 2

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Eigenvector calculation
When I run the eig command (see help here: <http://www.mathworks.com/help/matlab/ref/eig.html eig>) I don't get any complex eige...

casi 14 años hace | 0

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How do I remove the empty cells from a vector of cells?
Here's one way to do it. strs = {'one','','two','three','','','four',''}; empties = find(cellfun(@isempty,strs)); % ...

casi 14 años hace | 3

Pregunta

How do I remove the empty cells from a vector of cells?
I have a vector of cells which contain strings. Some of the cells in the vector are empty. I want to remove the empty cells from...

casi 14 años hace | 5 respuestas | 7

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How do I cut H and E planes from a 3D plot of an antenna radiation pattern?
You might find Eric Ludlam's <http://www.mathworks.com/matlabcentral/fileexchange/764-sliceomatic Sliceomatic> file (from the Fi...

casi 14 años hace | 1

Respondida
How do I simplify a symbolic expression into numeric output?
It looks like you've got a symbolic expression. You can substitute real numeric values for x1 and x2 like this: % Defin...

casi 14 años hace | 6

Pregunta

Why does 1 - 2/3 - 1/3 not equal zero?
Try this: >> 1 - 2/3 - 1/3 MATLAB gets the wrong answer: 5.5511e-017

casi 14 años hace | 4 respuestas | 8

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How do I turn off the grid in a polar plot?
It's a shame that it's not easier to do this, but here is a Solution that explains how to do it: <http://www.mathworks.com/sup...

casi 14 años hace | 2

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How do I turn off the grid in a polar plot?
For a normal MATLAB plot, I can turn the grid off and on with the |grid| command. x = 1:10; plot(x,sin(x)) grid on ...

casi 14 años hace | 3 respuestas | 2

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How to extract leading non-zero digit?
You'll probably need to do some kind of textual manipulation. Here's one way to do it. function y = leadingDigit(x) s = s...

casi 14 años hace | 4

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