Вы можете передать данные в функцию:
library(dplyr)
library(lme4)
model <- function(data, x){
lmer(paste("cyl ~", x, "+", "(1|disp)"), data = data)
}
и затем вызвать ее как:
mtcars %>% model('hp')
#Linear mixed model fit by REML ['lmerMod']
#Formula: cyl ~ hp + (1 | disp)
# Data: data
#REML criterion at convergence: 96.2
#Random effects:
# Groups Name Std.Dev.
# disp (Intercept) 0.927
# Residual 0.441
#Number of obs: 32, groups: disp, 27
#Fixed Effects:
#(Intercept) hp
# 3.1866 0.0196
Или
mtcars %>% summarise(mod = list(model(., 'hp')))
# mod
#1 <S4 class ‘lmerMod’ [package “lme4”] with 13 slots>