title: On the apparent clustering of clonal albumin production and enzyme activity levels.
abstract: This communication is a critique of a novel, but inappropriate, use of the correlation coefficient to demonstrate the clustering of biological activity levels about a purported geometric progression. The data are re-examined by using a Fourier analysis approach to test for periodicity on a logarithmic scale; this approach follows from the methods of Kendall (1974, Philosophical Transactions of the Royal Society, Series A 276, 231-266) and Fisher (1929, Proceedings of the Royal Statistical Society, Series A 125, 54-59).
mesh_terms: D000418:Albumins / Q000096:biosynthesis*; D000818:Animals; D001699:Biometry / Q000379:methods*; D002999:Clone Cells / Q000378:metabolism*; D004798:Enzymes / Q000378:metabolism*; D005583:Fourier Analysis
chemical_list: D000418:Albumins; D004798:Enzymes