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A list containing the heights of 39 boys and 54 girls from age 1 to 18 and the ages at which they were collected.
This list contains the following components:
a 31 by 39 numeric matrix giving the heights in centimeters of 39 boys at 31 ages.
a 31 by 54 numeric matrix giving the heights in centimeters of 54 girls at 31 ages.
a numeric vector of length 31 giving the ages at which the heights were measured.
The ages are not equally spaced.
# NOT RUN { with(growth, matplot(age, hgtf[, 1:10], type="b")) # }
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