algae | R Documentation |
Each row of the data set is a set of 90 measurements at a river in some place in Europe. There are 11 predictors. The response is the logarithm of the abundance of a certain class of algae. Description: The columns are: 1. season, categorical (1,2,3,4 for winter, spring, summer and autumn) 2. river size (categorical) (1,2,3 for small, medium and large) 3. fluid velocity (categorical) (1,2,3 for low, medium and high) 4-11 (numerci): content of nitrogen in the form of nitrates, nitrites and ammonia, and other chemical compounds. Col. 12 ia the response: abundance of a type of algae (type 6 in the complete file). For simplicity we deleted the rows with missing values and took the logarithm of the response.
data(algae)
An object of class "data.frame"
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Format 90 rows, 12 columns (3 categorical, 9 numeric)
Hettich, S. and Bay, S.D. (1999), The UCI KDD Archive http://kdd.ics.uci.edu. Irvine, CA: University of California, Department of Information and Computer Science.
References go here.
data(algae)
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