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Ned Gulley

MathWorks

Last seen: Today 2011 以来アクティブ

I work on the MATLAB Central and MATLAB Interface teams. See also http://www.starchamber.com/

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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...

4年以上 前 | 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...

5年弱 前 | 11

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質問


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...

6年以上 前 | 2 件の回答 | 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...

8年以上 前 | 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.

約9年 前 | 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...

9年以上 前 | 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 =...

10年弱 前 | 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...

10年弱 前 | 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...

約10年 前 | 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...

10年以上 前 | 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 ...

10年以上 前 | 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...

10年以上 前 | 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 ...

10年以上 前 | 0

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

10年以上 前 | 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...

11年弱 前 | 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...

11年弱 前 | 0

質問


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...

11年弱 前 | 5 件の回答 | 11

5

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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...

11年弱 前 | 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>.

11年弱 前 | 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-...

11年弱 前 | 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...

11年弱 前 | 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)); % ...

11年弱 前 | 3

質問


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...

11年弱 前 | 5 件の回答 | 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...

11年弱 前 | 1

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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...

11年弱 前 | 5

質問


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

11年弱 前 | 4 件の回答 | 8

4

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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...

11年弱 前 | 2

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質問


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 ...

11年弱 前 | 3 件の回答 | 2

3

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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...

11年弱 前 | 4