R help - May 2011 - Question about ggplot2

Hi all,

Is there any way for me to to string in the argument of qplot or ggplot? for
example

qplot(x='carat',y='price',data=diamonds,geom=c('point','smooth'))
instead of
qplot(x=carat,y=price,data=diamonds,geom=c('point','smooth'))

 Thanks!!

Regards,
TszKin Julian

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On 5/26/2011 12:29 PM, Julian TszKin Chan wrote:
> Hi all,
>
> Is there any way for me to to string in the argument of qplot or ggplot?
for
> example
>
>
qplot(x='carat',y='price',data=diamonds,geom=c('point','smooth'))
> instead of
>
qplot(x=carat,y=price,data=diamonds,geom=c('point','smooth'))
I don't know of a way using qplot, but it is possible with ggplot.  Use 
aes_string instead of aes:

ggplot(diamonds, aes(x=carat, y=price)) + geom_point() + geom_smooth()

ggplot(diamonds, aes_string(x="carat", y="price")) +
geom_point() +
geom_smooth()
>   Thanks!!
>
> Regards,
> TszKin Julian
>
> 	[[alternative HTML version deleted]]
-- 
Brian S. Diggs, PhD
Senior Research Associate, Department of Surgery
Oregon Health & Science University