Re: [igraph] Getting a subgraph of a graph whose nodes have certain attributes

[Peter Flom]

Hi Gabor

The R issue is that subset() and [ ] don't have the same defaults regarding
NA

The igraph issue is that when the vs vector includes NAs, things don't work,
and the error message is not particularly helpful

Thanks

Peter

Peter Flom
Peter Flom Consulting
http://www.statisticalanalysisconsulting.com/
http://www.IAmLearningDisabled.com

-----Original Message-----
From: address@hidden
[mailto:address@hidden
On Behalf Of Gábor Csárdi
Sent: Monday, April 09, 2012 11:35 AM
To: Help for igraph users
Subject: Re: [igraph] Getting a subgraph of a graph whose nodes have certain
attributes

Just for the records, what is the oddity here? That you cannot have NA in an
index vector?

Gabor

On Sat, Apr 7, 2012 at 3:46 PM, Peter Flom
<address@hidden> wrote:
> The solution was to use
>
> vs <- subset(traits$Position, traits$Volume > 50)
>
> instead of the [ ] notation.
>
> One of R's oddities (or harsher language......)
>
> Peter
>
> Peter Flom
> Peter Flom Consulting
> http://www.statisticalanalysisconsulting.com/
> http://www.IAmLearningDisabled.com
>
> -----Original Message-----
> From: 
> address@hidden
> [mailto:address@hidden
> org]
> On Behalf Of Jan Schulz
> Sent: Saturday, April 07, 2012 3:29 PM
> To: Help for igraph users
> Subject: Re: [igraph] Getting a subgraph of a graph whose nodes have 
> certain attributes
>
> Hi Peter!
>
> On 7 April 2012 20:40, Peter Flom <address@hidden>
> wrote:
>> Never mind, I figured this out.
>
> So what was the solution? :-)
>
> Kind regards,
>
> Jan
> --
> Jan Schulz
> mail: address@hidden
>
> _______________________________________________
> igraph-help mailing list
> address@hidden
> https://lists.nongnu.org/mailman/listinfo/igraph-help
>
>
> _______________________________________________
> igraph-help mailing list
> address@hidden
> https://lists.nongnu.org/mailman/listinfo/igraph-help



--
Gabor Csardi <address@hidden>     MTA KFKI RMKI

_______________________________________________
igraph-help mailing list
address@hidden
https://lists.nongnu.org/mailman/listinfo/igraph-help