Hi,
I have written boxplot commands of this form before, but I don't quite
understand why the function call is reporting a syntax error in this instance.
All parameters passed to the function are strings.
Thanks in advance.
Payam
> simplevar <- function(wframe,column1,column2) {
+ tframe <- get(wframe)
+ x1 <- which(names(wframe)==column1)
+ x2 <- which(names(wframe)==column2)
+ print(tframe[x1])
+ print(tframe[x2])
+ gtitle <- paste(names(tframe[x2])," vs. ", names(tframe[x1])
+ quartz(width=7,height=5,dpi=200)
Error: syntax error
> boxplot(tframe[x2] ~ tframe[x1])
Error in eval(expr, envir, enclos) : object 'tframe' not found
>
> }
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