On the example given below, which can easily be done using the levelplot function of R, I would like to ask a question of interpretation: if, for example, I have several values with drat on the x axis, andhp on the y-axis, how R decided which color to put in the cell referring to the cross-section of drat with hp? Is it by the mean of these various values? Or is it if most of them are in the defined range?
Anyway ... I researched this and found nothing that could answer my question. If anyone can help, thank you in advance.
