Message-ID: <EC800D0A-7A03-4637-967E-BCA93CA7DFE2@comcast.net>
Date: 2009-11-14T21:32:58Z
From: David Winsemius
Subject: re move row if the column "date_abandoned" has a date in it
In-Reply-To: <26352457.post@talk.nabble.com>
On Nov 14, 2009, at 1:21 PM, frenchcr wrote:
>
>
> I want to go through a column in data called
Bad name for a data.frame. Fortunes, "dog" and all that.
> date_abandoned....data["date_abandoned"]....and remove all the rows
> that
> have numbers greater than 1,010,000.
Are you doing archeology? Given what you say next I wondered what
range you were really asking for.
>
> The dates are in the format 20091114 so i'm just going to treat them
> as
> numbers for clean up purposes.
>
>
> I know that i use subset but not sure how to proceed from there.
subdata <- subset(data, date_abandoned > "01010000"()
The problem with > "1010000" is that your specified minimum point had
an insufficient number of "places" to be in YYYYMMDD format.
--
David Winsemius, MD
Heritage Laboratories
West Hartford, CT