[R-meta] Fwd: Dataframe is character

[P. Roberto Bakker]

Hi Wolfgang,

Thank you

Bw Roberto

2017-11-17 11:26 GMT+01:00 Viechtbauer Wolfgang (SP) <
wolfgang.viechtbauer at maastrichtuniversity.nl>:

> Hi Roberto,
>
> This is a bit off-topic here.
>
> But class("dat") is checking the class of the string "dat", which is
> obviously of class character. You want to use class(dat). Also, class(yi)
> would not work, since yi is inside dat. So, it should be class(dat$yi).
>
> Best,
> Wolfgang
>
> >-----Original Message-----
> >From: R-sig-meta-analysis [mailto:r-sig-meta-analysis-bounces at r-
> >project.org] On Behalf Of P. Roberto Bakker
> >Sent: Friday, 17 November, 2017 11:14
> >To: r-sig-meta-analysis at r-project.org
> >Subject: [R-meta] Fwd: Dataframe is character
> >
> >I resend my mail as I was not member of this list - now I am.
> >Roberto
> >
> >---------- Forwarded message ----------
> >From: P. Roberto Bakker <robertobakker at gmail.com>
> >Date: 2017-11-17 10:41 GMT+01:00
> >Subject: Dataframe is character
> >To: r-help at r-project.org
> >
> >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"
>

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