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Chris


Last seen: 10日 前 2018 年からアクティブ

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You know how you can sort of see a flashlight through your hand? Red and near-IR photons scatter throughout the tissue and are infrequently absorbed. I study how to use that effect to measure tissue health. Pic not really related.

Programming Languages:
Python, C, MATLAB

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How to export 3D sphere at stl format
You need a triangulation. stlwrite only works with triangles (vs tetrahedrons), which maybe has to do with an stl only defining...

5ヶ月 前 | 0

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Exempting imaginary numbers from the output of an expression using an if statement.
You can take the absolute value of each difference: AT = sqrt(s.*abs(s-a).*abs(s-b).*abs(s-c));

5ヶ月 前 | 0

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質問


How should I control label behavior when enabling/disabling elements in app designer?
I've attached a simple app wherein one listbox is disabled by default. In design view, this grays out the label text, as if gray...

5ヶ月 前 | 1 件の回答 | 0

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Splitting table field with multiple rows into separate columns
Whoops. It looks like each array in Data is a cell, so you'll need to drill down a bit. To repack the first cell: load('Data.ma...

12ヶ月 前 | 0

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Splitting table field with multiple rows into separate columns
How about: T = rows2vars(Data); T(:,1) = []; Or, if you really only want the first three: T = table(Data{1,1},Data{2,1},Data...

12ヶ月 前 | 0

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Fast calculation of distances between two large arrays
This should be a little bit quicker (my computer indicates ten hours). tol = 0.5; M = rand(1113486,2); N = rand(1960000,2); ...

12ヶ月 前 | 0

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Plot length of time between two events
Without your code, it's difficult to say what is "easier." Errorbar plots are pretty simple. You could use patch... % My table...

約1年 前 | 0

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Simple query: how can I remove radial axes (eliminate the "spokes") on a Compass Plot
I think the developers of these functions don't intend for us to be messing with the grids, or haven't gotten around to making i...

約1年 前 | 0

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I'm having a problem averaging multiple curves using interp1
You take the mean and max of the U values; I believe you want the I values instead. You have plenty of data points, so the defa...

約1年 前 | 0

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Logical Indexing With LinSpace Issues
This looks like a problem of computer precision. Double-precision floating point numbers in matlab (and floating-point numbers i...

約1年 前 | 1

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What is the difference between "any" and "all" function?
B = [0 0 0]; [any(B), all(B)] C = [1 1 1]; [any(C), all(C)] A = [0 1 0]; [any(A), all(A)] If any elements are true, any is...

約1年 前 | 1

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Unable to install matlab as it shows error unable to launch matlabWindow application
I would recommend using a Supported OS, probably with Gnome or KDE. If you insist on torturing yourself, start by reading the M...

約1年 前 | 1

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I would like to modify the equation to calculate total reflection coefficient for N multilayer structure
You could start with an approach like this (numbers are made up): ep = [1 3.9 12 1].'; % The apostrophe transposes the array t...

約1年 前 | 0

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set range in plot interactively
Attached is a basic app made hastily in App Designer. There are UI elements including a UIAxes for plotting, and callbacks att...

約1年 前 | 0

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Unable to perform assignment because the left and right sides have a different number of elements.
You've hit the end of the file. The file has 10001 data-containing lines. Your code errors at ii==11, jj==2. block_size (1000...

約1年 前 | 2

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Starting the AddOn Manager from the command line
I've just run across the Matlab Package Manager, though I'm not sure it would be helpful for your case either. MPM

約1年 前 | 1

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how to rotate image using function notation
If you're using imwarp, you might as well use imrotate, no? You'd be using the function imrotate() to rotate an image, if that's...

約1年 前 | 2

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How do I input a table column of values into a formula?
The problem, as pointed out by Stephen, is that you are accessing the table data with parantheses, which creates another table. ...

約1年 前 | 0

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Question regarding how to make a game similar to snake in MATLAB.
You could introduce a "grow" bit for each snake. Set it to false initially. grow = false; If a snake collides with an apple, s...

約1年 前 | 0

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Calling matlab.engine.connect_matlab() twice freezes Python
names = matlab.engine.find_matlab() if 'MY_SESSION' in names: eng = matlab.engine.connect_matlab('MY_SESSION') You can de...

約1年 前 | 0

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Converting an array slicer to Python
Here's a demonstration. import numpy as np lo = -200 hi = 20 x = np.ones((27000,1)) udata = np.ones((27000,10)) columnMa...

約1年 前 | 0

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How to merge and slice arrays of different sizes?
Perhaps you'd be better off with a cell array. ydata = randi(9,1,8) ydata = num2cell(ydata) udata = num2cell(randi(9,1,8)) u...

約1年 前 | 0

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disp(‘hello world’);
disp ('hello world'); Your apostrophes are wrong. How did you generate them? Here is your version: disp (‘hello world’); You ...

約1年 前 | 0

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expand intervals vol.2
Similar to problem <http://www.mathworks.co.uk/matlabcentral/cody/problems/2528 2528>. This is a more general case, when bounds ...

約1年 前

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expand intervals
You're given a row vector of an even number of monotonically increasing integers. Each pair of consecutive integers is the lower...

約1年 前

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Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

約1年 前

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Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

約1年 前

質問


I'd like to plot some points over an image in a dialog.
I want to be able to select one point with a left-click, a second point with a right-click, but I'm running into all sorts of tr...

約1年 前 | 1 件の回答 | 0

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Matlab App Designer get axes name from button click
I would add a tag (under "Identifiers") to the UIAxes. Then: function UIAxesSelectedCallback(app, event) selectedA...

約1年 前 | 0

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How to do this temporal plot
Here's one way. For importing data, perhaps something like data=transpose(readmatrix('filename.xlsx',Range','A2:N2002')); Empt...

1年以上 前 | 0

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