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Michael


2011 年からアクティブ

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質問


Generate random numbers with custom PDF
Hi, as it may become clear I'm fairly weak on probability distributions I want to generate a set of random numbers between 0 ...

12年以上 前 | 4 件の回答 | 2

4

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質問


imshow / pcolor ... inconsistent plotting
Hi Just asking to confirm something as I have never noticed this before and it's confusing me a bit. I'll use a simple exampl...

12年以上 前 | 1 件の回答 | 0

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質問


imshow - plotting a circular image, how to make corners white?
Hi I have a circular image but it's stored as a grayscale matrix, ie. square. When I use "imshow" with the jet colormap it au...

13年弱 前 | 2 件の回答 | 0

2

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質問


how to preallocate large logical array
Hi I'm trying to pre-allocate a huge logical matrix but I can't work out how to do it without creating a normal matrix then c...

13年弱 前 | 3 件の回答 | 3

3

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質問


Parfor error?
------------------------------------------------------------------------ Segmentation violation detected at Mon...

約13年 前 | 1 件の回答 | 0

1

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how to label lines on a graph
The general method would be using the legend function, to which you give a vector of the plot object handles and a series of cor...

約13年 前 | 6

質問


Problem with surf / pcolor / image
Hi I have a matrix and I want a pcolor-style plot where each square (and therefore its colour) corresponds to an element. Cur...

約13年 前 | 2 件の回答 | 0

2

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having one "for" loop instead of two
From the comments I think you want the surface c = a + b Just use a nested loop c = zeros(11); for a = 0:10 fo...

約13年 前 | 0

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converting a group of .fig files into .pdf
Are the files named according to some nice rule? eg. 1.fig, 2.fig, ... maybe you can write a script based on openfig / print (th...

約13年 前 | 0

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Linear Regression - more weight on specific Bins of data
lsqnonlin may be a good place to start, rather than giving it your model function and a starting point (eg. lsqcurvefit), you gi...

約13年 前 | 0

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pcolor command
try pcolor(imrotate(A,90)) This should move the top left corner to the bottom left.

約13年 前 | 0

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Optimization gives only small changes in each step, Why and how to solve it?
Which MATLAB function are you using? Certain ones allow you to input parameters that relate to how far you anticipate the minimu...

約13年 前 | 0

質問


parfor - how do I "slice" a variable? Can I?
I have a parfor loop that takes one row of a matrix and uses it for calculations. I therefore am getting errors since I am ca...

約13年 前 | 1 件の回答 | 0

1

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How to fully use the CPU of my PC?
100% CPU load is not a test that your code is optimised! It is just a sign that the hardware bottleneck may be in your processor...

約13年 前 | 1

質問


one line takes ages, but is it possible to optimise any more?
Need a little help, I'm running this code a lot and small differences lead to big time savings. I have a large matrix (512x512)...

約13年 前 | 3 件の回答 | 0

3

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Looping a function m-file, figures not closing
Thanks, both comments helped.

約13年 前 | 0

質問


Looping a function m-file, figures not closing
Hi, I'm running a script which repeatedly calls a function I wrote (using a for loop). In this function there is a command to...

約13年 前 | 3 件の回答 | 0

3

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Importing .xyz Data Files
I think the first line of your text file should be in the same format as the data; in your example the first row is a single zer...

約13年 前 | 1

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non linear regression of a 3D line
You need a model to fit to the data, if you can come up with one (for example, f(x,y,z; param1, param2 ...) = 0), and have a sui...

約13年 前 | 0