[R] Not able to convert data.frame to numeric properly

Frede Aakmann Tøgersen frtog at vestas.com
Wed Apr 9 08:17:18 CEST 2014


We can't say because we don't know how a was created.

Please email the output from 

str(a)

and

dput(a)



Yours sincerely / Med venlig hilsen


Frede Aakmann Tøgersen
Specialist, M.Sc., Ph.D.
Plant Performance & Modeling

Technology & Service Solutions
T +45 9730 5135
M +45 2547 6050
frtog at vestas.com
http://www.vestas.com

Company reg. name: Vestas Wind Systems A/S
This e-mail is subject to our e-mail disclaimer statement.
Please refer to www.vestas.com/legal/notice
If you have received this e-mail in error please contact the sender. 


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
> On Behalf Of Sachinthaka Abeywardana
> Sent: 9. april 2014 08:11
> To: r-help at r-project.org
> Subject: [R] Not able to convert data.frame to numeric properly
> 
> I have the following:
> 
> 
> >a #note that the 28 is a row.name
> 
>         GHP     GP      T     Tn
> 28   2.2194 2.6561 2.9007 3.2988
> 
> >min(as.numeric(a))
> 2.9007
> >min(as.numeric(as.character(a)))
> 2.9007
> >as.numeric(as.character(a))                 #What's going on here???
> [1] 33.0000 29.0000  2.9007  3.2988
> 
> So basically how do I get this to show the correct value of 2.21 as my
> minimum value?
> 
> Thanks,
> Sachin
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.




More information about the R-help mailing list