[R] Dataframe is character

[Petra Oleum]

class("dat") is different from class(dat), which is what you actually want.

On 17-11-17, P. Roberto Bakker wrote:
> Hi everybody,
> 
> Question: why are my dataframe and numeric variables a character?
> 
> I read an excel file via readxl but my dataframe is a character, and
> numeric variables, eg "yi", are also a character.
> My excelfile is in English numeric
> Sometimes the dataframe was indeed a dataframe, but I do not know why it
> did sometimes.
> Thank you in advance, Roberto
> PS I used "guess". The problem is not solve by using "text", "numeric" etc
> 
> My syntax (I think I cannot send the excel file as binary?)
> 
> > library(readxl)
> > library(readxl)
> > library(metafor)
> > setwd("C:/docs/Work2/Statistic_Analyses/MetaQTcAD")
> > getwd()
> [1] "C:/docs/Work2/Statistic_Analyses/MetaQTcAD"
> >
> 
> > dat <- read_excel("Hedges-g_QTc MA_R05.xlsx", sheet = 2, col_names=TRUE,
> col_types = c("guess"))
> > class("dat")
> [1] "character"
> > class("yi")
> [1] "character"
> >
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.