[R] Subset()

[David Winsemius]

How are we supposed to help you if you don’t read the Posting Guide and don’t provide any information about the classes of columns in `data`.?

— David.



> On Jan 20, 2017, at 10:02 AM, Elise LIKILIKI <elise.likiliki at gmail.com> wrote:
> 
> Hello,
> 
> I have a dataset containing Date Time, Air Temperature, PPFD, Sol
> Temperature...
> The first data are false so I would like to extract the other ones.
> I've tried :
>> data1<-subset(data,DateTime>=as.POSIXct("2017-01-10
> 11:00:00",format="%Y-%m-%d
> %H:%M:%S"),select=c(DateTime,PPFD_Avg,Air_Temp_Avg,RH_Avg,Soil_Temp_Avg))
> But I still have 4 rows with data from 2017-01-10 10:00:00 to 2017-01-10
> 10:45:00 and I don't understand why.
> 
> Does anyone could help me please.
> 
> Thanks,
> 
> Elise LIKILIKI
> 
> 	[[alternative HTML version deleted]]
> 
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> and provide commented, minimal, self-contained, reproducible code.

David Winsemius, MD
Alameda, CA, USA