[R] Error installing package sna

[Greenerpole]

Dear R-users, 

These days, I have been struggling to install the package sna on my Ubuntu
8.04 laptop. My R version is currently R 2.7.2. And I had no trouble
installing any other packages (including network). 

However when I run 'install.packages("sna")', compilation of C codes is ok,
but a syntax error is reported when building help pages and sna does not
want to install. 

I copied the log (just the part about help pages) at the end of this post.

Many thanks !


---

** help
 >>> Building/Updating help pages for package 'sna'
     Formats: text html latex example 
  add.isolates                      text    html    latex   example
  bbnam                             text    html    latex   example
  bbnam.bf                          text    html    latex   example
  betweenness                       text    html    latex   example
  bicomponent.dist                  text    html    latex   example
  blockmodel                        text    html    latex   example
  blockmodel.expand                 text    html    latex   example
  bn                                text    html    latex   example
  bonpow                            text    html    latex   example


******* Syntax error: \item in
/-----
Gould and Fernandez (following Marsden and others) describe
<EM>brokerage</EM> as the role played by a social actor who mediates contact
between two alters.  More formally, vertex v is a broker for distinct
vertices a and b iff a -> v -> b and a -!> b.  Where actors belong
to a priori distinct groups, group membership may be used to segment
brokerage roles into particular types.  Let A -> B -> C denote the
two-path associated with a brokerage structure, such that some vertex from
group B brokers the connection from some vertex from group A to a vertex in
group C.  The types of brokerage roles defined by Gould and Fernandez (and
their accompanying two-path structures) are then defined in terms of group
membership as follows:
</p>
<p>
<dl>
\item{eqn{Coordinator role; the broker mediates contact between two
individuals from his or her own group.  Two-path structure: A -> A ->
A}  
\itemnormal-bracket32bracket-normaleqnnormal-bracket35bracket-normalItinerant
broker role; the broker mediates contact between two individuals from a
single group to which he or she does not belong.  Two-path structure: A
-> B -> Anormal-bracket35bracket-normal  
\itemnormal-bracket38bracket-normaleqnnormal-bracket41bracket-normalGatekeeper
role; the broker mediates an incoming contact from an out-group member to an
in-group member.  Two-path structure: A -> B ->
Bnormal-bracket41bracket-normal  
\itemnormal-bracket44bracket-normaleqnnormal-bracket47bracket-normalRepresentative
role; the broker mediates an outgoing contact from an in-group member to an
out-group member.  Two-path structure: A -> A ->
Bnormal-bracket47bracket-normal  
\itemnormal-bracket49bracket-normaleqnnormal-bracket52bracket-normalLiaison
role; the broker mediates contact between two individuals from different
groups, neither of which is the group to which he or she belongs.  Two-path
structure: A -> B -> Cnormal-bracket52bracket-normal  
\itemnormal-bracket54bracket-normaleqnnormal-bracket55bracket-normalTotal
(cumulative) brokerage role occupancy.  (Any of the above
two-paths.)normal-bracket55bracket-normal  
</dl>
</p>
<p>
The <EM>brokerage score</EM> for a given vertex with respect to a given role
is the number of ordered pairs having the appropriate group membership(s)
brokered by said vertex.  brokerage computes the brokerage scores for each
vertex, given an input graph and vector of class memberships.  Aggregate
scores are also computed at the graph level, which correspond to the total
frequency of each role type within the network structure.  Expectations and
variances of the brokerage scores conditional on size and density are
computed, along with approximate z-tests for incidence of brokerage.  (Note
that the accuracy of the normality assumption is not known in the general
case; see Gould and Fernandez (1989) for details.  Simulation-based tests
may be desirable as an alternative.)\-----
ERROR: building help failed for package 'sna'
** Removing '/usr/local/lib/R/site-library/sna'

The downloaded packages are in
	/tmp/Rtmp1hqr3H/downloaded_packages
Warning message:
In install.packages("sna") :
  installation of package 'sna' had non-zero exit status

-- 
View this message in context: http://www.nabble.com/Error-installing-package-sna-tp24476784p24476784.html
Sent from the R help mailing list archive at Nabble.com.