R help - May 2014 - How to change the font size on the title of a xyplot

Hello

I am using xyplot (lattice) to plot a xts variable.  There are 20 variables
within the xts variable (index by a datetime vector sampled every 1 minute). 
The results are very nice and help me to understand what is going on with the
data. However since the names (labels of each variable) within the xts variable
are large, the title of each plot is cropped.   How can I select the font size
of the titles without changing all other fonts?

Many thanks

Ed

On May 10, 2014, at 2:26 PM, Eduardo M. A. M. Mendes wrote:
> Hello
> 
> I am using xyplot (lattice) to plot a xts variable.  There are 20 variables
within the xts variable (index by a datetime vector sampled every 1 minute). 
The results are very nice and help me to understand what is going on with the
data. However since the names (labels of each variable) within the xts variable
are large, the title of each plot is cropped.   How can I select the font size
of the titles without changing all other fonts?
> 
tp <- trellis.par.get()
names(tp)

... includes "par.main.text", so my first try was to use the xyplot()
facilities to change cex for 'main'. Seems to work as expected:

xyplot( 1~1, main="test",
par.settings=list(par.main.text=list(cex=5)))

--

David Winsemius
Alameda, CA, USA

Eduardo M. A. M. Mendes <emammendes <at> gmail.com> writes:
> 
> Hello
> 
> I am using xyplot (lattice) to plot a xts variable.  There are 20 variables
within the xts variable (index by a
> datetime vector sampled every 1 minute).  The results are very nice and
help
me to understand what is going
> on with the data. However since the names (labels of each variable) within 
the xts variable are large, the
> title of each plot is cropped.   How can I select the font size of the 
titles without changing all other fonts?
> 
> Many thanks
> 
> Ed
> 
> 
Ed,

you can try:

xyplot( y~x, main=list("title",cex=somevalue ) )

Greg