Nothing
print.summary.speff <- function(x,...){
if (!is.null(x$rsq)){
cat("\nOptimal models using",x$method,"method:\n")
if (x$predicted[1]) cat("Control: ",format(x$formula$control),", R-squared: ",round(x$rsq[1],2),"\n",sep="")
if (x$predicted[2]) cat("Treatment: ",format(x$formula$treatment),", R-squared: ",round(x$rsq[2],2),"\n",sep="")
}
cat("\nTreatment effect\n")
print(x$tab, digits=5, print.gap=2)
}
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