For all who sent help on topic Classification: Thank you very much folks. I have got some inspiration how to solve this task.
Michael ----- Original Message ----- From: "Marc Schwartz" <[EMAIL PROTECTED]> To: "Ing. Michal Kneifl, Ph.D." <[EMAIL PROTECTED]> Cc: <[email protected]> Sent: Wednesday, July 18, 2007 7:53 PM Subject: Re: [R] Classification > On Wed, 2007-07-18 at 19:36 +0200, Ing. Michal Kneifl, Ph.D. wrote: >> Hi, >> I am also a quite new user of R and would like to ask you for help: >> I have a data frame where all columns are numeric variables. My aim is >> to convert one columnt in factors. >> Example: >> MD >> 0.2 >> 0.1 >> 0.8 >> 0.3 >> 0.7 >> 0.6 >> 0.01 >> 0.2 >> 0.5 >> 1 >> 1 >> >> >> I want to make classes: >> 0-0.2 A >> 0.21-0.4 B >> 0.41-0.6 C >> ..... and so on >> >> So after classification I wil get: >> MD >> A >> A >> D >> B >> . >> . >> . >> and so on >> >> Please could you give an advice to a newbie? >> Thanks a lot in advance.. >> >> Michael > > See ?cut > > You can then do something like: > >> DF > MD > 1 0.20 > 2 0.10 > 3 0.80 > 4 0.30 > 5 0.70 > 6 0.60 > 7 0.01 > 8 0.20 > 9 0.50 > 10 1.00 > 11 1.00 > > >> cut(DF$MD, breaks = c(seq(0, 1, .2)), labels = LETTERS[1:5]) > [1] A A D B D C A A C E E > Levels: A B C D E > > > HTH, > > Marc Schwartz > > ______________________________________________ [email protected] 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.
