[R] Underline in expression().

[Uwe Ligges]

John Janmaat wrote:

> Sundar,
> 
> Thanks.  Unfortunately, I am looking for something that also works in 
> the margins of the plot.

As a workaround, what about frac() (well, vertical justification is not 
that perfect in this case)?

     plot(1:10, xlab = "")
     title(xlab = expression(frac(y == X * beta + e)),
           line = 4.5)

I'll probably take a look how to add that feature during August.

Uwe Ligges



> John.
> 
> Sundar Dorai-Raj wrote:
> 
>>
>>
>> John Janmaat wrote:
>>
>>> Hello All,
>>>
>>> Is there an analogue to \underbar or the AMS math \underline in 
>>> graphical math expressions?
>>>
>>> Thanks,
>>>
>>> John.
>>
>>
>>
>> Uwe Ligges posted a solution a couple of years ago. I don't know if 
>> there is anything built in yet. ?plotmath does not seem to say 
>> anything about underlining.
>>
>> http://finzi.psych.upenn.edu/R/Rhelp01/archive/7191.html
>>
>> plot(0:1, 0:1, type="n")
>> underlined(0.5, 0.5, expression(widehat(x %*% y)))
>>
>> --sundar
>>
>> ______________________________________________
>> R-help at stat.math.ethz.ch mailing list
>> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide! 
>> http://www.R-project.org/posting-guide.html
>>
>