search for: stringasfactors

Dear R-users, When I tried to import a text file (tab delimited) which has 2000+ rows with the following command (With the importData in S, it works though), x <- read.table(textfile, sep= "\t", skip=5, stringAsFactors=F) I received the following warning message: Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings,: number of items read is not a multiple of the number of columns. I checked the resulting data frame and found only about 1500 observations rather than 2000+ observations. Then,...

Hi, I have a problem with the time formatting in R. I have entered time in the format "MM:SS.xyz" and R has automatically classified this as a factor, but I need it numerically. However when I use as.numeric() it gives me totally different numbers. Is there any way I can tell R to read thes input as a number? Thank you very much [[alternative HTML version deleted]]

Hi, > dd <- data.frame(A=c("b","c","a"), B=3:1) > dd A B 1 b 3 2 c 2 3 a 1 > unlist(dd) A1 A2 A3 B1 B2 B3 2 3 1 3 2 1 Someone else might get something different. It all depends on the values of its 'stringsAsFactors' option: > dd2 <- data.frame(A=c("b","c","a"), B=3:1, stringsAsFactors=FALSE) > dd2

Folks, I have a very basic question. The solution eludes me perhaps because of my own lack of creativity. I am not attaching a fully reproducible session because the issue may well be becuase of the way the data file is, and the data file is large (and I don't know whether I can legally distribute it). If people can suggest things that might be wrong in my data or the way that I am reading it,

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En general lo que yo uso en esos casos es as.numeric(as.character(X)) No se los términos correctos pero los factores aunque se muestren con los nombres de las diferentes clases, internamente son clases separadas que se nombran como enteros por ejemplo del 1 al n de clases. Cuando usas directamente as.nuemric sobre un factor, este toma los numeros de las clases y no el valor de clase. Fijate en

Dear list, I'm trying to concatenate the values of two columns but im not able to do it: i have a dataframe with the following two columns: X VAR1 VAR2 1 2 2 1 3 2 4 3 5 4 6 4 what i would like to

I use the following code to create two data.frames d1 and d2 from a list: types <- c("integer", "character", "double") nlines <- 10 d1 <- as.data.frame(lapply(types, do.call, list(nlines)), stringsAsFactor=FALSE) l2 <- lapply(types, do.call, list(nlines)) d2 <- as.data.frame(l2, stringsAsFactors=FALSE) I would expect d1 and d2 to be the

Hi, I am trying to do a multiple regression on the dataset "Hdma", available in the Ecdat package. The data looks like this: > str(Hdma) 'data.frame': 2381 obs. of 13 variables: $ dir : num 0.221 0.265 0.372 0.32 0.36 ... $ hir : num 0.221 0.265 0.248 0.25 0.35 ... $ lvr : num 0.8 0.922 0.92 0.86 0.6 ... $ ccs : num 5 2 1 1 1 1 1 2 2 2

Muchas gracias, Fernando y Javier. > pami$PP <- as.numeric(as.character(pami$PP)) Warning message: NAs introduced by coercion Y entonces los datos que antes convertía en labels(pami$PP) (v.g. 753,2256 a 61343 o 62,7688 ? a 17390, que me pa eran enteros del 1 al n de clases como decía Fernando), los convertía en NA.- Luego de probar también con read.table, pasé a: > pami <-

Tranquilo que no te han hackeado tu "R"... Simplemente que al importar tu CSV, no has indicado que los decimales son las ",". Y ese campo lo importa como un character (un string). Y cuando lo conviertes a numeric, el resultado es un tanto impredecible. Si utilizas read.table para importar, simplemente incluye el parámetro "dec" de esta forma "read.table(..... ,