Nothing
SSgitay <-
selfStart(~ (k + slope*log(area))^2,
function(mCall, data, LHS)
{
xy <- sortedXyData(mCall[["area"]], LHS, data)
value <- as.vector(coef(lm(sqrt(xy[,"y"]) ~ log(xy[,"x"]))))
names(value) <- mCall[c("k","slope")]
value
},
c("k","slope"))
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