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Finney's data on vaso-contriction in the skin of the digits. The vaso data frame has 39 rows and 3 columns.
vaso
data(vaso)
This data frame contains the following columns:
volume
rate
response: 0= nonoccurrence, 1= occurrence
Atkinson, A.C. and Riani, M. (2000), Robust Diagnostic Regression Analysis, First Edition. New York: Springer, Table A.23