try something like:
r$deltact[r$time == '0h'] <- 0
On Sat, May 29, 2010 at 7:50 PM, ANJAN PURKAYASTHA
wrote:
> Hi,
> I have a data-frame r (shown below is a subset) with the following column
> names:
> date time sample vct norm hct deltact
>
> $time has 8 levels: 0h, 0.5h,
Hi,
I have a data-frame r (shown below is a subset) with the following column
names:
datetimesamplevctnormhctdeltact
$time has 8 levels: 0h, 0.5h, .24h. $deltact holds real numbers.
I want to subset this dataframe by the levels of $time. For all the rows
which have r$t
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