R IN ACTION SELF-TUTORIAL-58 作出散点图并显示拟合曲线和公式,添加标注文字 2021-01-02
image.png1.作出散点图1.1数据准备和读取:数据准备(存于excel表里):xy0.50.80.61.20.51.50.62.190.51.21读取数据library(readxl)d<-read_xlsx(file.choose())head(d)image.png转为dataframe:df<-as.data.frame(d)head(df)image.png1.2绘制散点图:lib