[R] What's wrong with MEAN?
ONKELINX, Thierry
Thierry.ONKELINX at inbo.be
Tue May 22 11:17:38 CEST 2012
You'll need to pass the data as a vector.
mean(16, 18) is asking the mean of 16. 18 is passed to the second argument which is trim. So you are doing mean(16, trim = 18)
What you want is
mean(c(16, 18))
Best regards,
Thierry
ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium
+ 32 2 525 02 51
+ 32 54 43 61 85
Thierry.Onkelinx op inbo.be
www.inbo.be
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-----Oorspronkelijk bericht-----
Van: r-help-bounces op r-project.org [mailto:r-help-bounces op r-project.org] Namens Vincy Pyne
Verzonden: dinsdag 22 mei 2012 11:10
Aan: r-help op r-project.org
Onderwerp: [R] What's wrong with MEAN?
Dear R helpers,
I have recently installed R version 2.15.0
I just wanted to calculate
mean(16, 18)
Surprisingly I got answer as
> mean(16, 18)
[1] 16
> mean(18, 16)
[1] 18
> mean(14, 11, 17, 9, 5, 18)
[1] 14
So instead of calculating simple Arithmetic average, mean command is generating first element as average. I restarted the machine, changed the machine, but still the reply is same. I have been using this mean function ever since I strated learning R, but this has never happened.
Kindly guide
Vincy
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