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Jon


Last seen: 4 years ago |  Active since 2012

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Question


Curl on surface of unit sphere
I have vectors of longitude and latitude on an approximately uniform grid (actually uniform is impossible) on the surface of a u...

6 years ago | 0 answers | 0

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answers

Question


Faster Kendall correlation calcuation
I need to do billions of Kendall correlations (yes, billions thank the gods for supercomputers) so I would like to make the corr...

6 years ago | 0 answers | 0

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answers

Question


Find not finding number in vector
If I do x = -10:.1:90; find(x==43.2) I get ans = Empty matrix: 1-by-0 If I do x(533) == 43.2...

8 years ago | 1 answer | 0

1

answer

Question


Kendall partial correlation using partialcorr function
Is there a reason the Kendall correlation is not an option for the partialcorr function?

8 years ago | 0 answers | 0

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answers

Question


Polynomial fit with errors (weights) in both axes
Anyone know of code for a polynomial fit with weights in both axes?

10 years ago | 1 answer | 0

1

answer

Question


Why does fit box to text not work?
That's it really. It doesn't work at all. It either makes the box too small or doesn't do anything at all. In either the plot wi...

10 years ago | 0 answers | 0

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answers

Question


How to stop Histogram from covering Tick Marks
How do you stop a histogram from covering tick marks on a graph? It's rather bewildering that they get covered up. Edit: I ha...

10 years ago | 2 answers | 0

2

answers

Question


Random elements of a vector which sum near a specific number
This is a fun question. I have a large vector which I need to take out 1000 random sub-vectors whose elements all add up to arou...

11 years ago | 2 answers | 0

2

answers

Question


Writing MAT file from c++. I have fully compiled code but values come out odd.
So I have a regular old c++ array of size 1 by 2919111 and I write this to a mat file using the matimport.c example. Where n(1) ...

12 years ago | 2 answers | 0

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answers