[Rd] Refresh every minute

[Schatzi]

I would like some code to rerun every minute, automatically (it calls time
and I want this to update). 
Here is the code (it is really the plot that I am interested in): 


hourc<-as.numeric(substr(date(),12,13)) 
minc<-as.numeric(substr(date(),15,16)) 
ftime<-c(hourc,minc) 
barplot(ftime, axes = FALSE, main="Time") 


Is there any way to get this to automatically update every minute or do I
have to rerun it manually each time I want to see the updated plot? 

I am using microsoft (vista). 

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In theory, practice and theory are the same. In practice, they are not - Albert Einstein
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