> Nathan
>
> On Wed, Apr 8, 2009 at 9:11 AM, Surendar Swaminathan
> <
address@hidden> wrote:
>>
>> Hello Gabor,
>>
>> Thank you very much for the input.R was crashed and I am not able to
>> reproduce them.A window pop up asking me to terminate the program and there
>> is only two option close or send error report I guess it must be that R
>> Crashed.
>>
>> Otherwise I get the error with the two graphs I sent.I will post to the R
>> help
>>
>>
>> Thank you very much.
>> Nathan
>>
>> On Wed, Apr 8, 2009 at 2:27 AM, Gábor Csárdi <
address@hidden> wrote:
>>>
>>> Hello Nathan,
>>>
>>> On Wed, Apr 8, 2009 at 1:07 AM, Surendar Swaminathan
>>> <
address@hidden> wrote:
>>> [...]
>>> > Error
>>> >
>>> > Error in solve(id - exponent * d, tol = tol) :
>>> > INTEGER() can only be applied to a 'integer', not a 'NULL'
>>>
>>> This is not a crash, it is an error message. Maybe it does not matter
>>> for you, but it does matter if one wants to find the bug. It seems to
>>> be a problem in the Matrix package, for me it fails in various ways.
>>> E.g. if I simplify() the first graph and keep only the giant component
>>> of it, then I get:
>>>
>>> Error in solve(id - exponent * d, tol = tol) :
>>> cs_lu(A) failed: near-singular A (or out of memory)
>>>
>>> which is fine, it just says that the equation cannot be solved. But
>>> for some graphs I also get
>>>
>>> > bp <- bonpow.sparse(g2, exponent=0.9)
>>> Error in solve(id - exponent * d, tol = tol) :
>>> INTEGER() can only be applied to a 'integer', not a 'builtin'
>>>
>>> and sometimes it really crashes:
>>>
>>> > bp <- bonpow.sparse(g2, exponent=0.9)
>>> *** glibc detected *** corrupted double-linked list: 0x0000000003188ae0
>>> ***
>>>
>>> This is on Linux and R 2.8.1.
>>>
>>> Anyway, this is an issue with 'solve' from the 'Matrix' package. Try
>>> to post to R-help, send the bonpow.sparse code and the links to your
>>> graphs. Your subject line should be something like "Matrix package,
>>> solve() errors and crashes". Make sure you also send the output of the
>>> sessionInfo() command.
>>>
>>> Best,
>>> G.
>>>
>>> [...]
>>> > Error
>>> > Error: cannot allocate vector of size 3.3 Gb
>>> > In addition: Warning messages:
>>> > 1: In solve(id - exponent * d, tol = tol) :
>>> > Reached total allocation of 1535Mb: see help(memory.size)
>>> > 2: In solve(id - exponent * d, tol = tol) :
>>> > Reached total allocation of 1535Mb: see help(memory.size)
>>> > 3: In solve(id - exponent * d, tol = tol) :
>>> > Reached total allocation of 1535Mb: see help(memory.size)
>>> > 4: In solve(id - exponent * d, tol = tol) :
>>> > Reached total allocation of 1535Mb: see help(memory.size)
>>>
>>> This is a memory issue. Maybe see ?Memory, but I don't it would ever
>>> work on 32bit Windows XP.
>>>
>>> [...]
>>>
>>> --
>>> Gabor Csardi <address@hidden> UNIL DGM
>>>
>>>
>>> _______________________________________________
>>> igraph-help mailing list
>>>
address@hidden>>>
http://lists.nongnu.org/mailman/listinfo/igraph-help
>>
>
>
> _______________________________________________
> igraph-help mailing list
>
address@hidden>
http://lists.nongnu.org/mailman/listinfo/igraph-help
>
>