jhall...@frb.gov writes:
Answering my own question here, so you can ignore this unless you are
really interested in some fairly obscure stuff. It turns out that this works:
singleIndex <- missing(j) && (length(sys.call()) == length(match.call()))
since sys.call() has an element for the empty ar
I have an S3 class called "tis" (Time Indexed Series) which may or may
not have multiple columns. I have a function "[<-.tis" that I've
reproduced below.
My question is this: inside of "[<-.tis", how can I distinguish between
calls of the form
x[i] <- someValue
and
x[i,] <- someValue ?
In
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