Re: [igraph] Boolean attributes in graphml

[Frederik Elwert]

Hi Gábor,

thanks for the quick reply! I will wait for the release then.

Regards,
Frederik


Am Fr 15 Nov 2013 19:49:20 CET schrieb Gábor Csárdi:
> Hi Frederik,
>
> thanks for the report! This was fixed already in the dev tree, will be
> released soon:
>
> g <- graph.ring(10)
> V(g)$type <- sample(c(TRUE, FALSE), vcount(g), rep=TRUE)
> write.graph(g, format="graphml", file="/tmp/a.graphml")
> g2 <- read.graph("/tmp/a.graphml", format="graphml")
> g2
>
> # IGRAPH U--B 10 10 -- Ring graph
> # + attr: name (g/c), mutual (g/l), circular (g/l), type (v/l), id (v/c)
>
> V(g2)$type
> #  [1]  TRUE  TRUE  TRUE  TRUE FALSE FALSE  TRUE FALSE  TRUE  TRUE
>
> Gabor
>
> On Fri, Nov 15, 2013 at 1:44 PM, Frederik Elwert <address@hidden> wrote:
>> Hello,
>>
>> I want to import a graphml file into igraph. The file has a boolean
>> attribute:
>>
>>   <key id="type" for="node" attr.name="type" attr.type="boolean"/>
>>
>> The attribute is written like this:
>>
>>   <data key="type">false</data>
>>
>> Gephi loads this fine, but igraph fails to load this attribute as bool.
>> (In python, it becomes a float with the value 0.0, regardless if it is
>> 'true' or 'false'.)
>>
>> I looked how igraph saves boolean values, but it looks like it saves
>> them as 'double', not as 'boolean'.
>>
>> Is it possible to load boolean values from graphml files into igraph?
>>
>> Regards
>> Frederik
>>
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