gavin_cdc的博客

## ref: A very basic tutorial for performing linear mixed effects analyses ## 分类变量 pitch = c(233,204,242,130,112,142) sex = c(rep("female",3),rep("male",3)) my.df = data.frame(sex,pitch) my.df xmdl =...

--- title: "mixed effect model" author: "gavin" date: "2019年8月16日" output: html_document --- ```{r setup, include=FALSE} knitr::opts_chunk$set(echo = TRUE) ``` ```{r} library(lme4) politeness=read....