For more than a decade, the Farm Journal Test Plots has varied corn populations and nitrogen rates to respond to natural management zones in the field. In 2012, the crew added variable-rate irrigation ...

Requests the plots to be produced by PROC PLOT. Tip: You can use multiple PLOT statements. Specify the plotting symbol for one contour level Scontour-level= Specify the plotting symbol for multiple ...

Canonical correlation analysis is a variation on the concept of multiple regression and correlation analysis. In multiple regression and correlation analysis, you examine the relationship between a ...

The added variable plots proposed by Pregibon and Wang and the partial residual plots proposed by Pregibon and Landwehr and co-workers for generalized linear models have been found useful for ...