Radioimmunoassay of IGF-I Protein


The IGF data frame has 237 rows and 3 columns.


This data frame contains the following columns:


an ordered factor giving the radioactive tracer lot.


a numeric vector giving the age (in days) of the radioactive tracer.


a numeric vector giving the estimated concentration of IGF-I protein (ng/ml)


Davidian and Giltinan (1995) describe data obtained during quality control radioimmunoassays for ten different lots of radioactive tracer used to calibrate the Insulin-like Growth Factor (IGF-I) protein concentration measurements.


Davidian, M. and Giltinan, D. M. (1995), Nonlinear Models for Repeated Measurement Data, Chapman and Hall, London.

Pinheiro, J. C. and Bates, D. M. (2000), Mixed-Effects Models in S and S-PLUS, Springer, New York. (Appendix A.11)

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