
I making an xyplot and the y label is too long and needs to be in two rows, but when I brake it there is a huge gap between the last text string and the expression, and I can't get rid of it. Any ideas?

Data:
structure(list(Temp = c(8L, 8L, 8L, 8L, 8L, 8L, 12L, 12L, 12L,
12L, 12L, 12L), CO2 = c(380L, 380L, 380L, 750L, 750L, 750L, 380L,
380L, 380L, 750L, 750L, 750L), Treat = structure(c(3L, 3L, 3L,
4L, 4L, 4L, 1L, 1L, 1L, 2L, 2L, 2L), .Label = c("12-380", "12-750",
"8-380", "8-750"), class = "factor"), Week = c(1L, 3L, 8L, 1L,
3L, 8L, 1L, 3L, 8L, 1L, 3L, 8L), Mean.Rate = c(2.125909389, 1.905870003,
1.417687602, 3.110439984, 2.31043989, 1.849232493, 2.546747098,
3.290235064, 3.000717599, 2.694901409, 3.852590547, 2.964084249
), lower = c(1.846641409, 1.44072624, 1.185304427, 2.56408099,
2.02644683, 1.606374443, 2.253928482, 2.759177284, 2.49014747,
2.168437604, 3.075977559, 2.438453415), upper = c(2.405177369,
2.371013766, 1.650070777, 3.656798978, 2.59443295, 2.092090543,
2.839565714, 3.821292844, 3.511287728, 3.221365214, 4.629203535,
3.489715083), fTemp = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 2L,
2L, 2L, 2L, 2L, 2L), .Label = c("8", "12"), class = "factor"),
    fCO2 = structure(c(1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 2L,
    2L, 2L), .Label = c("380", "750"), class = "factor"), fTreat = structure(c(1L,
    1L, 1L, 2L, 2L, 2L, 3L, 3L, 3L, 4L, 4L, 4L), .Label = c("8-380",
    "8-750", "12-380", "12-750"), class = c("ordered", "factor"
    )), fWeek = structure(c(1L, 2L, 3L, 1L, 2L, 3L, 1L, 2L, 3L,
    1L, 2L, 3L), .Label = c("1", "3", "8"), class = "factor")), .Names = c("Temp",
"CO2", "Treat", "Week", "Mean.Rate", "lower", "upper", "fTemp",
"fCO2", "fTreat", "fWeek"), row.names = c(NA, -12L), class = "data.frame")

xyplot(cbind(Mean.Rate,lower,upper)~fWeek|fTreat,
       resp.week.mean.rate,
       as.table=TRUE,
       xlab="Week",
       ylab=expression("Mean Reapisration Rate
(umol."*L^-1*".g (AFDM)"^-1*")"),
                         scales=list(alternating=FALSE,
                                     tick.number=10,
                                     tck=c(-1,0)),
       layout=c(4,1),
       ylim=1:5,
       auto.key=list(title="Treatment",
                     lines=TRUE,
                     cex.title=1,
                     columns=2),
       panel=function(x, y,...){
         panel.errbars(x,y,make.grid="none",ewidth=0.2,type="p",...)
         panel.loess(x[resp.week.mean.rate$Treat=="8-380"],y[resp.week.mean.rate$Treat=="8-380"],span = 5, degree = 1,lwd=2,...)
         panel.loess(x[resp.week.mean.rate$Treat=="8-750"],y[resp.week.mean.rate$Treat=="8-750"],span = 5, degree = 1,lwd=2,...);
         panel.loess(x[resp.week.mean.rate$Treat=="12-380"],y[resp.week.mean.rate$Treat=="12-380"],span = 5, degree = 1,lwd=2,...);
         panel.loess(x[resp.week.mean.rate$Treat=="12-750"],y[resp.week.mean.rate$Treat=="12-750"],span = 5, degree = 1,lwd=2,...)
       }
       )

Beatriz de Francisco Mora
PhD Student
The Scottish Association for Marine Science
Scottish Marine Institute
Oban
PA37 1QA
Tel: 06131 559000 (switchboard)
Fax: 01631559001
E. beatriz.defrancisco@sams.ac.uk<mailto:beatriz.defrancisco@sams.ac.uk>
http://www.smi.ac.uk/beatriz-de-franciso

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