Thank you just got that there . This is the r code I have written :
TreatmentA.Improvement.in.AOFAS <-ankle.12.df %>%
filter(Treatment %in% 'A') %>% select(AOFAS) %>% as.data.frame()
normtol.int(TreatmentA.Improvement.in.AOFAS$AOFAS, alpha = 0.05, P = 0.95, side = 2)
and now im being faced with this error ;
Version:1.0 StartHTML:0000000107 EndHTML:0000000897 StartFragment:0000000127 EndFragment:0000000879
Error in ankle.12.df %>% filter(Treatment %in% "A") %>% select(AOFAS) %>% : could not find function "%>%"