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Chris McComb


Last seen: presque 4 ans il y a |  Actif depuis 2013

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www.cmccomb.com
sites.psu.edu/hsdl

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Réponse apportée
Is there a mathwork about tensegrity structure?
You might want to start <http://www.markschenk.com/tensegrity/files.html here> .

plus de 9 ans il y a | 1

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Réponse apportée
loop for extracting columns of a matrix
If you have a matrix, M, you can access column i (as a vector) by using M(:, i). (The colon indicates 'every row')

plus de 9 ans il y a | 0

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Remove intercept with "regress"
I think that all you need to do is remove the first column from your second argument (i.e. the column of 1's). [b17, bint1...

plus de 9 ans il y a | 0

Réponse apportée
Replacing elements in matrix columns
You can do the replacement using logical indexing. The replacement for 34 --> 1 would be as follows: for i=2:3 idx = (...

plus de 9 ans il y a | 0

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can i change the x axis without changing the plot? So i have a array with 10000 numbers in it, i want to plot thoes 10000 numbers in time, like 0-10sec insted of 0-10000.
You just need to supply a vector of x values. Something like x = linspace(0, 10, length(buf)); Then, just plot as ...

plus de 9 ans il y a | 0

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Can anyone explain from the third line till the end of below code..??
The third line from the end contains only the word 'else'. This is typical syntax for the if control structure. In the example, ...

plus de 9 ans il y a | 0

Réponse apportée
Creating Multiple Windowed Plots
You can use the command figure() to open a new window to plot in.

plus de 9 ans il y a | 0

| A accepté

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save txt file in loop
You could do something like this using the dlmwrite function: for i=1:1:50 dlmwrite(sprintf('%d.txt', i), magic(i));...

plus de 9 ans il y a | 0

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How do I change the resolution of an image produced by imagesc?
To use imresize, you first read the image in: a = imread('image.jpg'); Then, you apply imresize as follows (for example ...

plus de 9 ans il y a | 0

Réponse apportée
How to draw smooth balls (spheres) and sticks (cylinders) around my XYZ points.
This should do what you're looking for regarding the spheres (but see my above comment for cylinders). % Parameters SPHE...

plus de 9 ans il y a | 1

Réponse apportée
finding slope of a curve at some specific points
You might want to start by looking at MATLAB's gradient function. You could also use simple finite difference formulas, like: ...

plus de 9 ans il y a | 1

Réponse apportée
Fast interp1 with 'spline'
Are you calling interp1 with a vector or lookup points? If not, doing so could give you a significant speed-up.

plus de 9 ans il y a | 0

Réponse apportée
Data vectors with different time intervals
You should interpolate the temperature data. You can do this using a variety of methods, which you can find <http://www.mathwork...

plus de 9 ans il y a | 0

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How significantly does the platform Matlab is run on affect numerical precision?
This difference could be a result of slightly different <http://www.netlib.org/blas/ BLAS> implementations. <http://www.mathw...

plus de 9 ans il y a | 0

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3D mesh/surf plot puzzle
You should try using the bar3 function, as follows: bar3(img, 1.0) The 1.0 sets the width to unity, so that the bars a...

plus de 9 ans il y a | 1

| A accepté

Réponse apportée
Displaying the order of objects on an axis
You're having this problem because the rectangle command draws the object in the xy plane, with z=0. Therefore, since I'm guessi...

plus de 9 ans il y a | 0

| A accepté

Réponse apportée
non-linear optimization over a frequency bandwidth
I think you can do exactly what you said: maximize the average voltage output. Use fmincon, but write an objective function t...

plus de 9 ans il y a | 0

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Is numeric gradient estimation well-posed
It will depend a great deal on the characteristics of your function. If your function is smooth, then you can generally expect g...

plus de 9 ans il y a | 0

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How can I set transparency in 2D plot?
I don't think there's a way to make markers transparent. However, you could plot each data point as a small circle (using patch)...

plus de 9 ans il y a | 2

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Creating a blank canvas in Matlab
I think that you should probably approach this using the patch command. This will allow you to specify circles with your desired...

plus de 9 ans il y a | 1

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Matlab: Can anyone explains this geometry file
The snippet that you want to focus on is part of a switch statement. The variable nargin is a integer that tells you how many ar...

presque 10 ans il y a | 0

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