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]]
>
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