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Function that creates four graphs that can be used to help assess independence, normality, and constant variance
checking.plots(model, n.id = 3, COL = c("#0080FF", "#A9E2FF"))
an aov or lm object
the number of points to identify
vector of two colors
twoway.plots, oneway.plots
twoway.plots
oneway.plots
# NOT RUN { mod.aov <- aov(StopDist ~ tire, data = Tire) checking.plots(mod.aov) rm(mod.aov) # }
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