R help - Oct 2003 - plotmath question: y'

Hi all,

I wonder how to correctly write the following expression (it's the axis 
label in a plot command):

    ylab=expression(y' == y - bar(y) )

Somehow the single quote in y' is causing the problems, I guess because 
it is interpreted as a quote...
Does it have to be escaped? But how?

Thanks for your help

Pascal

Pascal A. Niklaus wrote:
> Hi all,
> 
> I wonder how to correctly write the following expression (it's the axis
> label in a plot command):
> 
>    ylab=expression(y' == y - bar(y) )
   expression(y * "'"  == y - bar(y))

Uwe Ligges

> Somehow the single quote in y' is causing the problems, I guess because
> it is interpreted as a quote...
> Does it have to be escaped? But how?
> 
> Thanks for your help
> 
> Pascal
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help

"Pascal A. Niklaus" <Pascal.Niklaus at unibas.ch> writes:
> Hi all,
> 
> I wonder how to correctly write the following expression (it's the
> axis label in a plot command):
> 
>     ylab=expression(y' == y - bar(y) )
> 
> Somehow the single quote in y' is causing the problems, I guess
> because it is interpreted as a quote...
> Does it have to be escaped? But how?
y*minute or y*"'" should do it. 

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