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Re: [igraph] Get communities with less than 8 nodes then remove isolates


From: Benika H
Subject: Re: [igraph] Get communities with less than 8 nodes then remove isolates
Date: Wed, 4 Feb 2015 20:26:44 -0500

right_size <- which(sizes(wc) < 8 & sizes(wc) > 1)
subg <- induced.subgraph(y, which(membership(wc) %in% right_size))

That code is only giving me 9 communities of one node. 
Is there another way?

when I print out sizes(wc), I get at least 32 communities with at least 2 nodes and less than 7 nodes.

I'm not sure why its not working.


Thanks for your help!!

On Wed, Feb 4, 2015 at 8:02 PM, Chris Watson <address@hidden> wrote:
Ah indeed you are correct. Your code should work fine...

On Wed, Feb 4, 2015 at 7:59 PM, Gábor Csárdi <address@hidden> wrote:
On Wed, Feb 4, 2015 at 7:53 PM, Chris Watson <address@hidden> wrote:
Again, you need to adjust parentheses.

which(c1$csize < 8) & which(c1$csize > 2)

This is actually not good, which() returns a numeric vector, so a logical 'and' on it does not make much sense.

Again, what is wrong with 

right_size <- which(sizes(wc) < 8 & sizes(wc) > 1)
subg <- induced.subgraph(y, which(membership(wc) %in% right_size))

?

G.

[...]

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