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I have a network in R, formatted in pajek(.net) of collaborations. I'm trying to run an ergm analysis on it. I've formatted a similar network and run the same commands successfully, but when we expanded the size of the network, this error has begun to appear. 

> CollabNet2005ERGM <-ergm(CollabNet05~edges+nodematch("11"))
Error in -object$glm$null.deviance : invalid argument to unary operator

Is there a workaround, either on the formatting side of things or within R that will allow me to complete the ERGM?

Roman Luštrik
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Charles Farr
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  • You really should make a minimal [reproducible example](http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example) if you need help debugging code. – MrFlick Jun 05 '15 at 21:41
  • without the original data file, this is going to be very hard to debug. Perhaps posting a `traceback()` from the error will give us a clue? – skyebend Sep 08 '15 at 19:18

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