Source: Daniel, C. and Wood, F. S. (1980),"Fitting Equations to Data: Computer Analysis of Multifactor Data", Second Edition, New York: John Wiley and Sons Taken From: Chatterjee and Hadi (1988), p. 259. Dimension: 14 observations on 6 variables Description: The data set is one of a sequence of several data sets taken at different times in an experimental study relating the heat evolved during hardening of 14 samples of cement to the composition of the cement. The explanatory variables are weights (measured as percentages of the weight of each sample) of five Clinker compounds. The dependant variable (heat) is the last column in the data set.