As.numeric(as.character(factor.level.to.convert)) On Mar 23, 2012 11:40 AM, "sandro" <sonav...@gmail.com> wrote:
> Hello, I am relatively new to using R. > > The text file contains the date and price . I want to read and manipulate > the data in R. However, when I use read.table, it treats all of the data > as > "factors" and I do not know how to treat the data as numbers: > > http://r.789695.n4.nabble.com/file/n4498828/p_diarios.txt p_diarios.txt > > setwd ("C:\\Users\\Sandro\\Dropbox\\R") > data.precios <- read.table ("p_diarios.txt ", header =TRUE > , dec=",", sep="\t") > Time <- data.precios$time # 01.02.2004 - 12.05.2011 > Price <- data.precios$price # Historical spot price > log.Price <- log(data.precios$price) > Error en Math.factor(c(12L, 126L, 213L, 342L, 160L, 186L, 219L, 37L, 54L, > : > log not meaningful for factors > > As you can see, I cannot calculate the price logarithms. > > Any help is appreciated. > > Sandro > > -- > View this message in context: > http://r.789695.n4.nabble.com/How-to-convert-factors-to-numbers-tp4498828p4498828.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@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. > [[alternative HTML version deleted]] ______________________________________________ R-help@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.
