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Kenneth Eaton


Hellebore Consulting Group, LLC

Last seen: environ 4 ans il y a |  Actif depuis 2008

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I'm a seasoned biomedical researcher and software developer with expert knowledge of computational biology, object-oriented programming, image processing, statistical analysis, and user interface design. I've been programming for over 30 years, having cut my teeth on BASIC and Logo when I was 10.

You can often find me on Stack Overflow answering MATLAB questions: http://stackoverflow.com/users/52738/gnovice

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Réponse apportée
How do I skip items in a legend?
Starting in R2021a, you can leave an item out of a legend by setting the corresponding label to an empty character vector. For e...

environ un an il y a | 108

| A accepté

Réponse apportée
Error using FreezePanes in Excel
You could try setting the property with a logical value, since it expects a Boolean type: Excel.ActiveWindow.FreezePanes = true...

plus de 5 ans il y a | 0

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I am trying to use the function imfill() but it does not run and the following message is displayed: Undefined function or variable 'eml_assert_all_constant'. I can't find such fuction in MATLAB documentation.
If you use the function <https://www.mathworks.com/help/matlab/ref/which.html |which|> like so: which iptcheckconn -all ...

environ 7 ans il y a | 4

Réponse apportée
Why is subsref and subscripted reference not equivalent
Not sure if this is a complete answer, but it appears that invoking subsref directly requires a stricter definition of the outpu...

presque 8 ans il y a | 1

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Hump-day challenger - Recursion
My first attempt: function index = find_index(M,V) switch numel(M) case 0 index = []; case 1 ...

plus de 13 ans il y a | 1

| A accepté

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How can i remove the sky from this image. (About background removal question)
I'm unclear how <http://www.mathworks.com/help/techdoc/ref/zeros.html ZEROS> is to be used for this problem, but you could do it...

plus de 13 ans il y a | 3

| A accepté

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How do I generate a given Matrix in one command?
I can't believe no one suggested dilation: A = imdilate(eye(5),ones(2)); Or convolution: A = sign(conv2(eye(5),ones(2),'s...

plus de 13 ans il y a | 3

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Slice thickness information lost when using dicomwrite()
I think your problem may be the missing capitalization of the "t" in the name |SliceThickness|. Notice that all the fields in th...

plus de 13 ans il y a | 0

| A accepté

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What matlab easter eggs do you know?
As <http://blogs.mathworks.com/steve/2006/10/17/the-story-behind-the-matlab-default-image/ Steve discussed in one of his blog po...

plus de 13 ans il y a | 20

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How do I save and restore the state data in a GUI?
<http://www.mathworks.com/matlabcentral/fileexchange/24861-41-complete-gui-examples 41 Complete GUI Examples> from Matt Fig on t...

presque 14 ans il y a | 1

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Hump-day puzzler.
In response to Andrew's extra challenge for a solution in which |BLANK| returns |true|, here's an absolutely insane one: func...

presque 14 ans il y a | 3

Réponse apportée
Hump-day puzzler.
Here's a pretty goofy answer: true) fprintf('I Love '); end; if (false

presque 14 ans il y a | 6

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What programming challenges would you pose to new users?
Designing simple GUIs can introduce newer users to a number of important concepts. For example... *Challenge:* Create a stopwa...

presque 14 ans il y a | 2

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How to make a list of user's reputation ? :)
Here's yet another variation that uses Walter's idea of going through the pages of questions, fetching the question links, then ...

presque 14 ans il y a | 3

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How to compare two different cell arrays ?
The <http://www.mathworks.com/help/techdoc/ref/setdiff.html SETDIFF> function does what you want. It will give you the values in...

presque 14 ans il y a | 11

| A accepté

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How do I write a good answer for MATLAB Answers?
I'm generally in favor of pointing out when a key edit (i.e. correction) has been made to an answer for the following reasons: ...

presque 14 ans il y a | 5

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Using find in a 3d matrix in MATLAB.
When finding values in multidimensional (i.e. greater than 2-D) arrays using the function <http://www.mathworks.com/help/techdoc...

presque 14 ans il y a | 30

| A accepté

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Declaring 'many' variables from work space into function workspace
Yet another option is to design your function to accept a <http://www.mathworks.com/help/techdoc/ref/varargin.html variable leng...

presque 14 ans il y a | 0

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MATLAB xlswrite function
The reason? Because <http://www.mathworks.com/help/techdoc/ref/xlswrite.html#bsnsz_b-13 the documentation> says so! ;) Excerpt:...

presque 14 ans il y a | 1

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Outputting to string
You can do this using the function <http://www.mathworks.com/help/techdoc/ref/eval.html EVAL>: for i = 1:3 eval(['var_' i...

presque 14 ans il y a | 2

| A accepté

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How to solve symbolic system of equations?
Easy, use the <http://www.mathworks.com/help/toolbox/symbolic/solve.html SOLVE> function: >> S = solve(Eqs) S = a:...

presque 14 ans il y a | 0

| A accepté

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Need help writing a datacursormode Text Update Function to display high, low, close, date, & volume data as a Datatip on a plot made with the highlow function of the Financial Toolbox.
Since you want your data cursor to display data that is not on the plot, you will have to put that data in a place that the Text...

presque 14 ans il y a | 2

| A accepté

Réponse apportée
Compute opponent colour of RGB values
If you are talking about a <http://en.wikipedia.org/wiki/Opponent_process color opponent process>, I figured out a simple functi...

presque 14 ans il y a | 1

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Grayscaled Images to RGB
If |img| is your grayscale image, stored as a 2-D |uint8| array, you can create a red version by making |img| be the red color p...

presque 14 ans il y a | 3

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Output of delaunay function
As per <http://www.mathworks.com/help/techdoc/ref/delaunay.html the function documentation>, the matrix |tri| returned from DELA...

presque 14 ans il y a | 2

| A accepté

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Working with a three dimensional matrix
If you're asking how you would index |k| in your loop to get a 2-D submatrix, you would do the following: l = k(:,:,i);

presque 14 ans il y a | 1

Réponse apportée
clearing an instance of a structure variable
You can remove an element from a structure array the same way you can remove an element from any other type of array: a(1) = ...

presque 14 ans il y a | 2

| A accepté

Réponse apportée
How to generate symbolic variables dynamically at run-time?
You can generate your system of equations from a matrix of zeroes and ones using just the <http://www.mathworks.com/help/toolbox...

presque 14 ans il y a | 2

| A accepté

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Problem saving/loading structure with function handles
In the documentation for <http://www.mathworks.com/help/techdoc/matlab_prog/f2-38133.html#brfp2ff-1 Saving and Loading Function ...

presque 14 ans il y a | 2

| A accepté

Réponse apportée
How can I find what parameters are in an inline function.
You can use the ARGNAMES function (which is a method for inline objects) to get the arguments of the inline function as a cell a...

presque 14 ans il y a | 2

| A accepté

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