HLM。RCS。限制性立方條。R語言實現RCS生成限制性立方條，畫圖，源碼

#HLM library(readxl) library(xlsx) mydata <- as.data.frame(read_excel("mydata_2019_12.xlsx")) View(mydata) #create new dataframe mydata_new_constructed <- data.frame() k=1 for (i in 1:nrow(mydata)){  

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