Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Fit diagnostics. , the predicted effect of combination (i, j) if there is no interaction, is plotted along the x-axis versus εijk, the difference between observed and predicted value on the y-axis. The red line indicate local regression estimates of local mean of εijk [49]. No significant trends are apparent.
