[R] Dataframe is character

Ivan Calandra calandra at rgzm.de
Fri Nov 17 11:31:58 CET 2017


Hi Roberto,

This often happens when there are some non-numeric characters. You would 
have to check it.
Without more information, e.g. dput(dat), you will have to find by yourself.

HTH,
Ivan

--
Dr. Ivan Calandra
TraCEr, laboratory for Traceology and Controlled Experiments
MONREPOS Archaeological Research Centre and
Museum for Human Behavioural Evolution
Schloss Monrepos
56567 Neuwied, Germany
+49 (0) 2631 9772-243
https://www.researchgate.net/profile/Ivan_Calandra

On 17/11/2017 10:41, 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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