plotres {ExpDes}

Residual plots

Description

plotres Residual plots for a output model. Four sets of plots are produced: (1) Histogram, (2) normal probability plot for the residual, (3) Standardized Residuals versus Fitted Values, and (4) box-plot (Standardized Residuals).

Usage

plotres(x)

Arguments

x

Output from anova (performed in ExpDes).

Author(s)

Eric B Ferreira, [e-mail] @author Denismar Alves Nogueira @note The default produces four plots regarding the ANOVA assumptions.

References

STEEL, R. G. D.; TORRIE, J. H. Principles and procedures in Statistics: a biometrical approach. McGraw-Hill, New York, NY. 1980.

See Also

graphics.

Examples

data(ex1)
attach(ex1)
a<-crd(trat, ig)
plotres(a)