[R] Error: object 'short' not found

[kmittapalli]

HI,

I am trying to run this code 

pdf(file="Biology_2012_GOF.pdf", width=8.5, height=4.5)
   grid.draw(my.sgpd$Goodness_of_Fit$Biology_2012$Q1_Q2)
dev.off()
 I get an error mesage "object not found"- can someone please help?

Kavita

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