R語言中的lm()函數是一個線性模型函數,用於線性回歸分析。
用法: lm(formula)
參數:
formula:模型描述,如 x ~ y
範例1:
# R program to illustrate
# lm function
# Creating two vectors x and y
x <- c(rep(1:20))
y <- x * 2
# Calling lm() function to
# fit a linear model
f <- lm(x ~ y)
# Getting linear model
f
輸出:
Call: lm(formula = x ~ y) Coefficients: (Intercept) y 1.589e-15 5.000e-01
範例2:
# R program to illustrate
# lm function
# Creating two vectors x and y
x <- c(2, 4, 6, 8)
y <- c(1, 3, 5, 7)
# Calling lm() function to
# fit a linear model
f <- lm(y ~ x)
# Getting linear model
f
輸出:
Call: lm(formula = y ~ x) Coefficients: (Intercept) x -1 1
相關用法
注:本文由純淨天空篩選整理自Kanchan_Ray大神的英文原創作品 Perform Linear Regression Analysis in R Programming – lm() Function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。