whats that mean: Erreur : `d` must evaluate to column positions or names, not a list

[you24]

Hi,
please can someone tell me whats the problem with this code ( i think its basic thing but i really dont understood the problem)

library(dplyr)

library(tidyr)
library(BayesFactor)

d<- read.table("stat_pretest.txt", sep = "\t", header = T)
d<-d[d$rts<7000,]

d1TR <- d %>%

• select(d, -exactitude)%>%
• spread(key = cond, value = rts)
  Erreur : d must evaluate to column positions or names, not a list

[nirgrahamuk]

the pipe %>% sends d as the first parameter to select already, so you would omit the explicit d if you are using the pipe, or else dont use the pipe and use the explicit version
either

d1TR <- select(d, -exactitude)

or

d1TR <- d %>% select( -exactitude)

[you24]

@you24

spread(key = cond, value = rts)

yes its works , thank you