valplot: valplot
In valmetrics: Metrics and Plots for Model Evaluation

Description Usage Arguments Details Value Author(s) Examples

Plots predicted values versus observed values in a coordinate system with the same range of both axes.

valplot(
  o,
  p,
  main = NA,
  sub = NA,
  xlab = "Observed value",
  ylab = "Predicted value"
)

`o`	A numeric vector. Observed values.
`p`	A numeric vector. Predicted values.
`main`	A character value. The main title of the plot.
`sub`	A character value. The subtitle of the plot.
`xlab`	A character value. The x axis label.
`ylab`	A character value. The y axis label.

Circles represent the data, dashed line represents observed = predicted and solid line represents an

A scatter plot of observed and predicted values.

Kristin Piikki, Johanna Wetterlind, Mats Soderstrom and Bo Stenberg, E-mail: kristin.piikki@slu.se

obs<-c(1:10)
pred<-c(1, 1 ,3, 5, 4, 5, 6, 8, 11, 10)
t1='Measured variable (unit)'
evalue<-round(e(o=obs, p=pred),2)
maevalue<-round(mae(o=obs, p=pred),1)
t2=paste('E = ', evalue, '; MAE = ', maevalue, ' units')
valplot(o=obs, p=pred, main=t1, sub=t2)