"Transparent" background in graphics exported as metafiles

Hi,

Under Windows, I am exporting graphs from R (in metafile -emf- format), and
want to combine them using a graphic package. It happens that the background
of the graph is represented by a filled rectangle (with the color given by
bg=...). This is to be expected. However, I find no options to disable this
and produce a graph with transparent background. Does such an option exist?

No. Actually, I think you want no background in the EMF file, as I don't
know want `transparent background' means in EMF (but that could be my
ignorance).

`transparent' is not an R colour.  I guess ideally bg="transparent" would
suppress colouring the background on all devices.

If not, then this could be a useful addition, because it is tricky to edit
the metafile, ungroup de elements, select the background rectangle, delete
it, regroup all the other elements and save the graph in a graphic pachage
just to get transparent background on the graph... This could be simply
bg=False.

Patches accepted....  It has been mentioned before in the context of png
and jpeg plots.

Thanks,

Philippe Grosjean

P.S.: I really appreciate the changes made to exported graphs in R to
correct the bug in MS Word 2000 (some metafiles are not correctly displayed
on screen in Word 2000 for Windows). It is amazing that the R-team find a
workaround for this Micro$oft bug... and in the meanwhile, Micro$oft itself
does nothing. This is another example of the poor service of MS, comparing
to a community of volunteers creating a GPL software!!! Many, many thanks to
all guys that contributed to fix this.

The one accepts your thanks.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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Hello,

I am using plot(data, type="h") to represent residuals of a time serie
decomposition, like in stl(). Now, since I am using a multiplicative model X
= S x T x R (serie X decomposed as S seasonal, T trend and R residual, by
the way, using Census II method). In this model, no residual means R = 1,
and not R = 0. Is it a way to represent vertical bars with type="h",
starting from elsewhere than 0 (i.e., here from 1)?
Thanks,

Philippe Grosjean


...........]<(({?<...............<?}))><...............................
 ) ) ) ) )	 __               	 __
( ( ( ( ( 	|__)              	|  _
 ) ) ) ) )	|   hilippe       	|__)rosjean
( ( ( ( ( 	Marine Biol. Lab., ULB, Belgium
 ) ) ) ) )	                  	 __
( ( ( ( ( 	|\  /|            	|__)
 ) ) ) ) )	| \/ |ariculture &	|__)iostatistics
( ( ( ( (
 ) ) ) ) )	e-mail: phgrosje at ulb.ac.be or phgrosjean at sciviews.org
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 ) ) ) ) )      tel: 00-32-2-650.29.70 (lab), 00-32-2-673.31.33 (home)
( ( ( ( (
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( ( ( ( (                                  L. Gonick & W. Smith (1993)
 ) ) ) ) )
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Hello,

I am using plot(data, type="h") to represent residuals of a time serie
decomposition, like in stl(). Now, since I am using a multiplicative model X
= S x T x R (serie X decomposed as S seasonal, T trend and R residual, by
the way, using Census II method). In this model, no residual means R = 1,
and not R = 0. Is it a way to represent vertical bars with type="h",
starting from elsewhere than 0 (i.e., here from 1)?

I think it is not possible. But you can use segments() instead.

Uwe Ligges
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