[R] lattice: How to vertically adjust an axis label?

[Marius Hofert]

Dear David,

thanks for the hint, I completely forgot about phantom(). With that, I can solve the problem:

library(lattice)
xyplot(0~0, xlim=c(0,3), scales=list(x=list(at=c(1,1.1),    
                                     labels=c(expression(hat(theta)[italic(n)]),
                                     expression(phantom(hat(theta)[italic(n)])*theta*phantom(hat(theta)[italic(n)]))))))

I use phantom() to put the expression with the largest height to the left of the smaller label. Then I also put it on the right side of the smaller label in order to center the label again. It's certainly dirty, but it solves the problem :-)

Cheers,

Marius

On 2011-07-09, at 24:12 , David Winsemius wrote:

> 
> On Jul 8, 2011, at 6:54 PM, Marius Hofert wrote:
> 
>> Dear expeRts,
>> 
>> How can I vertically adjust an axis tick label so that it is nicely aligned with
>> the other labels?
>> 
>> library(lattice)
>> xyplot(0~0, xlim=c(0,3), scales=list(x=list(at=c(1,1.1), labels=c(expression(hat(theta)[italic(n)]),expression(theta)))))
>> ## aim: move the leftmost expression up so that theta is nicely aligned with the second
> 
> I don't know how to make a phantom <hat>,  so see if this is any more aesthetically acceptable:
> 
> xyplot(0~0, xlim=c(0,3), scales=list(x=list(at=c(1,1.1),    labels=c(
>      expression(atop(phantom(), hat(theta)[italic(n)])),
>       expression(atop(phantom(),theta))                     )
>        )))
> 
>> theta.
>> 
>> Cheers,
>> 
>> Marius
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> 
> David Winsemius, MD
> West Hartford, CT
>