Hi Marc Schwartz, Your suggestion solved my problem.
Thanks you. --- Em qui, 11/6/09, Marc Schwartz <marc_schwa...@me.com> escreveu: > De: Marc Schwartz <marc_schwa...@me.com> > Assunto: Re: [R] How to force R to print 2 decimal places in column of a > data.frame? > Para: "Lesandro" <lesand...@yahoo.com.br> > Cc: r-help@r-project.org > Data: Quinta-feira, 11 de Junho de 2009, 15:45 > > On Jun 11, 2009, at 11:48 AM, Lesandro wrote: > > > > > How to force R to print 2 decimal places in column of > a data.frame? I tried to do so: > > > > x = inp(format(rounf(inp$Tamanho, 2), nsmall = 2),) > > > > where "INP" is data.frame and "Size" is the name of > column. But has error: > > > > Error in eval.with.vis(expr, envir, enclos) : > > could not find function "inp" > > > > Lesandro > > > > Your code and description above appear to have some typos > in it and the use of the round() and format() functions are > not what you want here. > > You code has inp(...), where R is presuming that you are > referring to a function called 'inp', hence the error > message, since the function does not exist. > > Better to use sprintf() with an appropriate format > specifier: > > set.seed(1) > vec <- rnorm(10) > > > vec > [1] -0.6264538 0.1836433 -0.8356286 > 1.5952808 0.3295078 -0.8204684 > [7] 0.4874291 0.7383247 0.5757814 > -0.3053884 > > > sprintf("%.2f", vec) > [1] "-0.63" "0.18" "-0.84" "1.60" "0.33" > "-0.82" "0.49" "0.74" > [9] "0.58" "-0.31" > > See ?sprintf for more information. Note that the > presumption here is that you want to output the numeric > values to a formatted character vector for display purposes, > perhaps in a table, etc. > > So if your actual data frame is called 'INP' and the column > is called 'Size', you would use: > > sprintf("%.2f", INP$Size) > > > HTH, > > Marc Schwartz > > Veja quais são os assuntos do momento no Yahoo! +Buscados http://br.maisbuscados.yahoo.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.