xyplot: problems with column names & legend

Thanks, the backtickes got the code working. However, now I cant get
it to draw the legend/key.
For example, look at this figure:http://osiris.sunderland.ac.uk/~cs0her/Statistics/xyplot5.png
My graph is similar, but instead of 1,2,...,8 as the names of the
series I want it to say "Data one" (a string with spaces) and so on.

On Jan 3, 10:58?am, baptiste auguie <baptiste.aug... at googlemail.com>
wrote:

Hi,

Using backticks might work to some extent,

library(lattice)
`my variable` = 1:10
y=rnorm(10)
xyplot(`my variable` ~ y)

but if your data is in a data.frame the names should have been converted,

make.names('my variable')
[1] "my.variable"

HTH,

baptiste

2010/1/3 Jay <josip.2... at gmail.com>:

Hello!

one more question about xyplot. If I have data which have space in the
column names, say "xyz 123". How do I create a working graph where
this text is displayed in the legend key?

Now when I try something like xyplot("xyz 123" ~ variable1, data =
mydata, .......) I get nothing.
Also, is it possible to genrate the graph with xyplot(mydata[,1] ~
variable1, data = mydata, .......) and then later in the code specify
the names that should be displayed in the legend?

Thank you!