Re: [R] unwanted as.integer

From: Jack Tanner <ihok_at_hotmail.com>
Date: Sat 31 Jul 2004 - 02:23:37 EST

Sundar Dorai-Raj wrote:

> Not sure about what sqlQuery is doing but you can wrap your return value 
> in a eval(parse(text = x)) to evaluate the "as.integer(.)" string. As in,
> 
> a <- eval(parse(text = a))

This works, except it doesn't.

> a <- sqlQuery(irrdb, "select count(field) from mytable where field=1")
> print(a)

  count(field)
1 8
> paste(a)

[1] "as.integer(8)"
> eval(parse(text=a))
[1] 8
> paste(eval(parse(text=a)))

[1] "8"

That's great, but...
> paste(list(eval(parse(text=a)), eval(parse(text=a))))
[1] "as.integer(8)" "as.integer(8)"

Argh!!! What the hell is going on?

---

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https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Sat Jul 31 03:02:28 2004