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Rev 81944 Rev 83708
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Asym   192.69     20.244  9.5182 7.4824e-11
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Asym   192.69     20.244  9.5182 7.4824e-11
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xmid   728.76    107.299  6.7919 1.1202e-07
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xmid   728.76    107.299  6.7919 1.1202e-07
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scal   353.53     81.472  4.3393 1.3382e-04
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scal   353.53     81.472  4.3393 1.3382e-04
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> ## IGNORE_RDIFF_END
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> ## IGNORE_RDIFF_END
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>
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>
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> ## getInitial.formula() gets selfStart function from environment(formula)
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> plogis <- stats::SSlogis
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> in2 <- getInitial(circumference ~ plogis(age, Asym, xmid, scal), Orange)
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> ## in R <= 4.2.x gave Error:
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> ##   no 'getInitial' method found for "function" objects
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> rm(plogis)
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>
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>
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>
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> ## lower and upper in algorithm="port"
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> ## lower and upper in algorithm="port"
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> set.seed(123)
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> set.seed(123)
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> x <- runif(200)
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> x <- runif(200)
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> a <- b <- 1; c <- -0.1
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> a <- b <- 1; c <- -0.1