4.21.1 Top new questions this week

4.21.1.1 Estimate the "Blurry" distribution of an image

https://mathematica.stackexchange.com/questions/146989/estimate-the-blurry-distribution-of-an-image

 
I'm trying to analyze an image obtained by scanning electron microscope(SEM) where different parts of the same image has has different blurring radius. My goal is to determine how blurry different  ...
 

- asked by Wjx (17 votes), answered by Shadowray (20 votes)

4.21.1.2 Nest list with two functions

https://mathematica.stackexchange.com/questions/147055/nest-list-with-two-functions

 
Is it possible to use the NestList command with two functions, one at every even step and apply the other at every odd step.  If this is possible could someone share an example ?
 

- asked by David (12 votes), answered by Shadowray (14 votes)

4.21.1.3 Exporting structured data to HDF5

https://mathematica.stackexchange.com/questions/146859/exporting-structured-data-to-hdf5

 
Sadly the documentation is lacking any useful examples on how to Export more complex data in HDF5. There is only 
 
 
Export["file.h5",{expr1,...},{"Datasets", {"dataset1",...}}] creates an HDF5 file,  ...
 

- asked by Sascha (10 votes), answered by Sascha (5 votes)

4.21.1.4 Using Mathematica to create an H-Tree

https://mathematica.stackexchange.com/questions/146797/using-mathematica-to-create-an-h-tree

 
Can folks show me several methods I can use to draw the following fractal H-Tree? 
 
 
 
I did use Free-Form input, as: 
 
= h-fractal 
 
 
And got this image, which is three iterations, but no idea how it was  ...
 

- asked by David (10 votes), answered by J. M. (10 votes)

4.21.1.5 Combining # & pure functions with post-fix notation

https://mathematica.stackexchange.com/questions/147132/combining-pure-functions-with-post-fix-notation

 
I can't find the link anymore but there was a talk at a Wolfram conference (referencing v7 I think) where the authors highlight that stringing together functions like this: 
 
Range[100] //  ...
 

- asked by Joe (9 votes), answered by Szabolcs (7 votes)

4.21.1.6 Hosting a curated data function / server in Google Drive

https://mathematica.stackexchange.com/questions/146832/hosting-a-curated-data-function-server-in-google-drive

 
I want to make a curated data function, but I have no good place to store the paclets. 
 
Per the pricing page I only get: 
 
 
 
And that's really not enough to host all of my data plus give me room to do  ...
 

- asked by MB1965 (9 votes), answered by MB1965 (8 votes)

4.21.1.7 Interpolate the noisy data

https://mathematica.stackexchange.com/questions/146688/interpolate-the-noisy-data

 
I have some noisy data 
 
data = Uncompress[FromCharacterCode[ 
Flatten[ImageData[Import["http://i.stack.imgur.com/RZcpj.png"],"Byte"]]]] 
 
 
Plot looks like this 
 
 
 
There is noise in certain region,  ...
 

- asked by Saesun Kim (9 votes), answered by bill s (8 votes)