R help - Apr 2013 - Undesired vertical lines in png file output using 'cairo-png'

Hello all,

I'm writing a file to PNG on Windows 7 using 'cairo-png'. I've
been using
it without problem for a while, but abruptly I'm getting what look like
unplotted areas. I'm using the cairo-png specifically because it
sucessfully generates a transparent background, whereas 'windows'
doesn't.

The actual issue has a lot of code I don't think it's useful to post,
but
the relevant lines of code are below:

png(file="FooBar.png",
w=900,h=500,units="px",bg="transparent",family="Lato",type="cairo-png",antialias="none")
par(mar=c(5,4,3,0),bty="n",mfrow=c(1,2))
dev.off()

You can see the difference in outputs here:
http://stackoverflow.com/questions/15839198/r-png-has-undesired-vertical-lines-plot-doesnt

Note that using 'windows' does not result in the error - it's
something
specific to 'cairo-png'. The vertical lines appear to be empty, i.e.
transparent.

Any guidance or assistance would be greatly appreciated.

Regards,
Daniel Egan

-- 


[image: Betterment]*Daniel Egan |* Director of Behavioral Finance and
Investing at Betterment.com <http://betterment.com/> | Follow us on
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