plot 1 to 1 line to examine linearity — plot

plot_121 plot 1 to 1 line to examine linearity

plot_121(df, xvar, yvar, color = NULL, labx = NULL, laby = NULL, ...)

Arguments

df: a dataframe, include columns xvar and yvar
xvar: unquoted variable for colmun name for x axis, should be categorical
yvar: unquoted variable for column name for y axis, should be numeric
color: `NULL`, unquoted variable for colmun name for group
labx: string for x axis title, default is xvar.
laby: string for y axis title, default is yvar

Value

a ggplot with 1:1 line

Author

Tien-Cheng Wang

Examples

  pacman::p_load(ggplot2,toolPhD,ggpmisc)
  plot_121(iris,Sepal.Length,Petal.Length,color=Species)

  plot_121(iris,Sepal.Length,Petal.Length)
#> Warning: Removed 2 rows containing missing values or values outside the scale range
#> (`geom_smooth()`).