2.4.1 Top new questions this week

2.4.1.1 Summer Solstice Spurious Correlations Challenge

http://mathematica.stackexchange.com/questions/86413/summer-solstice-spurious-correlations-challenge

 
I came across this hilarious web site that has charts of bizarre "correlations" between disparate categories. Results like this: 
 
 
 
In the spirit of my summer solstice shedding spuriously earned rep.  ...
 

- asked by ciao 20votes

2.4.1.2 Is there any Mathematica functionality enabling its use for the blind?

http://mathematica.stackexchange.com/questions/86538/is-there-any-mathematica-functionality-enabling-its-use-for-the-blind

 
A colleague of mine has become blind as the result of a sudden medical misfortune. We want to help him to feel useful and active again. We, however, still cannot determine what can be done and to what  ...
 

- asked by Alexei Boulbitch 17votes

2.4.1.3 Nearest neighbor search in n-dimensions

http://mathematica.stackexchange.com/questions/86262/nearest-neighbor-search-in-n-dimensions

 
Suppose a list of items such as: 
L1 = RandomReal[{0, 100}, 1000]; 
 
I need to find the position of each k-neighbor in the original list. And very quickly if possible. 
As we can see, the problem is  ...
 

- asked by Doedalos (14 votes), answered by bill s (14 votes)

2.4.1.4 HDF5 importing large arrays

http://mathematica.stackexchange.com/questions/86544/hdf5-importing-large-arrays

 
I have some computations that output a 300,000,000 element array of long unsigned ints, so about 2.4GB, in an h5 file. Mathematica handles files south of 2GB fine, albeit taking very long to import  ...
 

- asked by Kartoffelpelz (13 votes), answered by Albert Retey (7 votes)

2.4.1.5 How does Rescale[] handle infinities?

http://mathematica.stackexchange.com/questions/86365/how-does-rescale-handle-infinities

 
Rescale appears to be a simple function.  It just does a simple linear $y = a x + b$ type rescaling of the values: 
 
Rescale@Range[0, 10] 
(* {0, 1/10, 1/5, 3/10, 2/5, 1/2, 3/5, 7/10, 4/5, 9/10, 1} *) 
 
 
...
 

- asked by Szabolcs (13 votes), answered by LLlAMnYP (5 votes)

2.4.1.6 How to fill the space outside of an image after rotating it

http://mathematica.stackexchange.com/questions/86528/how-to-fill-the-space-outside-of-an-image-after-rotating-it

 
I want to rotate this image   by -50 degrees, and then fill up the black space around the rotated image   with a bluish color. I can't find any documentation/answers that suggest how to do it. (Sorry  ...
 

- asked by George Wolfe (12 votes), answered by ubpdqn (21 votes)

2.4.1.7 How do I add my own help pages to the in-built Wolfram documentation?

http://mathematica.stackexchange.com/questions/86137/how-do-i-add-my-own-help-pages-to-the-in-built-wolfram-documentation

 
How do I add my own help pages to the in-built Wolfram documentation ?
 

- asked by Peter Lindsay 11votes