If I create an aggregation like this:

aggregate(lastYear[,8:10],list(Stadium=lastYear$STAD),mean)

I'll get a new data frame, which I can order if I assign it like this:

newFrame <- aggregate(lastYear[,8:10],list(Stadium=lastYear$STAD),mean)
newFrame[order(newFrame$TEMP),]

But.. if I just want to do this in one statement, what can I do?  If this
was perl, I'd be using something like $_:

aggregate(lastYear[,8:10],list(Stadium=lastYear$STAD),mean)[order($_$TEMP),]

So basically, I want to call order within the square braces, and I want to
reference the dataframe that preceeds the square brace.  Is there a way to
do this in R?

thanks,
bp

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