RE: match() (not short, he he)
Hello again,
I see now why there is so much confusion here.
We are attempting to understand something basic,
yet confusing the issue by the using something
that belongs to another issue in general that,
in itself, is also a little hard to understand.
Once we remove this secondary issue from all
the examples, the underlying concepts shine through
bright and clear.
The secondary issue i was talking about is that
of using quotes around characters like "b", "abc"
etc. This in itself clouds the issue, and so if
we remove the use of quotes for all of the remaining
discussions, the concepts will show through much
better. Once we have determined for sure how
things work without using ANY quotes, then we can
come back and again look at cases with quotes, but
im sure it will be much simpler then.
Ok, so leaving the quotes out we have to use
the ascii codes to represent the characters,
such as 97,98,99, etc., but we dont even have to
use characters for now really.
With this in mind, let's repeat a couple of the
examples:
[1] match(2, {1,2,3}) --ret 0
[2] match({2}, {1,2,3}) --ret 2
[3] match({2}, {{1,2,3}}) --ret 0
Note that the level of the first arg determines where
the second arg is searched, but unfortunately, it
only works at level 1 unless you are looking for
an exact match, which will be the subject for my next
post about the problems with match.
Take care,
Al
|
Not Categorized, Please Help
|
|
