[R-sna-devel] sna v1.0 (w/network update)

[Carter T. Butts]

elijah wright wrote:
> 
> :)
> 
> hey carter.... "YOU RULE!"
> 

Hey, I aim to please....

> 
> thanks for all the work and for all the new goodies to play with.
> 

You're quite welcome.  Speaking of which, I should mention that the 
long-awaited network package is now on CRAN (with help from Mark 
Handcock, Dave Hunter, and a cast of thousands).  Network allows for 
more efficient storage of large, sparse graphs, as well as support for 
edge, vertex, and network-level attributes.  sna and network are 
natively interoperable, in the sense that most sna routines (should) 
automagically accept network objects as input.  For instance:

library(sna)                 #Load sna
library(network)             #Load network
data(emon)                   #Load the Drabek et al. EMON data
betweenness(emon,g=1:7)      #Compute betweenness for all networks

$Cheyenne
  [1]  8.1500000  1.4500000 15.0333333  0.1666667  1.0000000  0.0000000
  [7] 13.4833333 28.1000000 13.7166667  0.1666667  1.3666667  0.3333333
[13]  5.0000000  3.0333333

$HurrFrederic
  [1]   0.000000   0.000000   0.000000  17.899711 111.907648  15.017893
  [7]  11.181746   0.000000   0.000000   0.000000   1.111111   0.000000
[13]  11.045310  18.020707   7.333838  16.624603   3.811111   2.285714
[19]   7.278283  12.648990   1.833333

$LakePomona
  [1] 56.3226190  5.9928571  3.2916667  2.9678571 60.3880952 11.0107143
  [7] 14.5797619  0.0000000  2.2523810  0.0000000  1.8845238  0.3666667
[13]  0.0000000 19.5940476 10.5428571  2.1500000 13.4059524  0.0000000
[19]  0.0000000  1.2500000

$MtSi
  [1] 14.1666667  0.0000000  1.7333333  0.0000000  7.5666667  0.4000000
  [7]  0.0000000  0.7333333  0.0000000  0.0000000  0.0000000  1.4000000
[13]  0.0000000

$MtStHelens
  [1] 13.388961 39.707251  0.000000  0.000000 15.207143  0.000000  0.000000
  [8]  0.000000 15.299675  0.000000  0.000000 77.007251  0.000000  1.798485
[15] 42.775433 88.788636  1.233333  0.000000  0.000000  0.000000 33.700108
[22] 13.093723  0.000000  0.000000  0.000000  1.000000  0.000000

$Texas
  [1]   0.4588235   1.3088235 124.9598568   8.5505103  25.5899540 
28.0735048
  [7]   7.2617593  31.1875641  51.2246303   0.0000000  19.5664566 
20.8364882
[13]   7.2510599  52.2216387  11.3253358   9.3845041   9.6599853   2.1916667
[19]  16.6089799   8.1683622   7.0920024  15.0127684   8.6315018   0.0000000
[25]   0.4338235

$Wichita
  [1] 44.8346320  2.6952381  0.0000000 11.1480519  6.6961039 17.6504329
  [7]  1.1142857  0.9142857  6.9231602 22.8831169  1.7580087  1.8861472
[13]  0.0000000  1.4761905 20.6361472  0.3333333 14.4880952  0.0000000
[19]  6.5627706  0.0000000

Fun stuff.  Anyway, several new packages will be released in the coming 
months, which will build on network.  Those using sna by itself won't be 
impacted, but some may want to take advantage of network's new 
functionality.

It seems that things have come a long way from the first little 
collection of R functions I put together (as a favor!) in late 1999.  At 
that point, I don't suppose that I would have guessed that it would take 
five years to get to version 1.0.  Then again, I wasn't at all sure that 
there was going to _be_ a version 1.0 at that point!  :-)  Thanks to 
those on this list (and elsewhere) who have sent in suggestions, bug 
reports, and code snippets over the past few years...your prodding has 
been an essential ingredient in making sna a useful tool for network 
researchers.

Let me know as you find the new bugs,  (;-))

-Carter