Use par(oma=c(1,1,1,1))  # oma = "outer margin area"

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On Wed, Sep 29, 2010 at 5:03 PM, Mohsen Jafarikia <jafarikia@gmail.com>wrote:

> Hello All,
>
> I am drawing a graph having 18 small graphs inside using par(mfrow =
> c(6,3))
> command. My problem is how to specify the margins of the whole 18 graphs. I
> used par(mar=c(6.5, 6.5, 1.5, 1.5)) for each graph separately already but
> it
> does not left any margins for the 'mtext()' for the margins of the whole 18
> graphs. Any comments please.
>
> Thanks,
> MJK
>
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>
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