Message-ID: <122EE0C2-43FC-4AB3-88C0-E4E389F5640E@comcast.net>
Date: 2010-12-30T22:53:01Z
From: David Winsemius
Subject: drop observations
In-Reply-To: <AANLkTi=QyugSx4-aisZrdNGvoV5xEbaNevch0VMzzH2b@mail.gmail.com>
On Dec 30, 2010, at 4:54 PM, Charl?ne Cosandier wrote:
> Hi,
>
> I want to drop observations with value 0 from my data.frame "dta"
> for each
> of the two variables "c01" and "ctotale". How can I do that?
>
> Thanks
>
>
subset(dta, !( c01==0 | ctotale==0) )
... remembering of course to assign this result to some appropriately
named object.
> Charl?ne Lisa Cosandier
>
> [[alternative HTML version deleted]]
--
David Winsemius, MD
West Hartford, CT