library(tidyverse)
library(janitor)
#>
#> Attaching package: 'janitor'
#> The following objects are masked from 'package:stats':
#>
#> chisq.test, fisher.test
mpg
#> # A tibble: 234 x 11
#> manufacturer model displ year cyl trans drv cty hwy fl class
#> <chr> <chr> <dbl> <int> <int> <chr> <chr> <int> <int> <chr> <chr>
#> 1 audi a4 1.8 1999 4 auto~ f 18 29 p comp~
#> 2 audi a4 1.8 1999 4 manu~ f 21 29 p comp~
#> 3 audi a4 2 2008 4 manu~ f 20 31 p comp~
#> 4 audi a4 2 2008 4 auto~ f 21 30 p comp~
#> 5 audi a4 2.8 1999 6 auto~ f 16 26 p comp~
#> 6 audi a4 2.8 1999 6 manu~ f 18 26 p comp~
#> 7 audi a4 3.1 2008 6 auto~ f 18 27 p comp~
#> 8 audi a4 quattro 1.8 1999 4 manu~ 4 18 26 p comp~
#> 9 audi a4 quattro 1.8 1999 4 auto~ 4 16 25 p comp~
#> 10 audi a4 quattro 2 2008 4 manu~ 4 20 28 p comp~
#> # ... with 224 more rows
model<-lm(cty~displ,mpg)
summary(model)
#>
#> Call:
#> lm(formula = cty ~ displ, data = mpg)
#>
#> Residuals:
#> Min 1Q Median 3Q Max
#> -6.3109 -1.4695 -0.2566 1.1087 14.0064
#>
#> Coefficients:
#> Estimate Std. Error t value Pr(>|t|)
#> (Intercept) 25.9915 0.4821 53.91 <2e-16 ***
#> displ -2.6305 0.1302 -20.20 <2e-16 ***
#> ---
#> Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
#>
#> Residual standard error: 2.567 on 232 degrees of freedom
#> Multiple R-squared: 0.6376, Adjusted R-squared: 0.6361
#> F-statistic: 408.2 on 1 and 232 DF, p-value: < 2.2e-16
Created on 2021-12-02 by the reprex package (v2.0.1)