stackloss
stack.x
stack.loss
stackloss
is a data frame with 21 observations on 4 variables. [,1] | Air Flow |
Flow of cooling air | [,2] |
Water Temp |
Cooling Water Inlet Temperature |
[,3] | Acid Conc. |
Concentration of acid [per 1000, minus 500] | [,4] |
stack.loss |
Stack loss |
stack.x
, a matrix
with the first three (independent) variables of the data frame, and
stack.loss
, the numeric vector giving the fourth (dependent)
variable, are provided as well. Air Flow
represents the rate of operation of the plant.
Water Temp
is the temperature of cooling water circulated
through coils in the absorption tower.
Acid Conc.
is the concentration of the acid circulating, minus
50, times 10: that is, 89 corresponds to 58.9 per cent acid.
stack.loss
(the dependent variable) is 10 times the percentage
of the ingoing ammonia to the plant that escapes from the absorption
column unabsorbed; that is, an (inverse) measure of the over-all
efficiency of the plant.
Dodge, Y. (1996) The guinea pig of multiple regression. In: Robust Statistics, Data Analysis, and Computer Intensive Methods; In Honor of Peter Huber's 60th Birthday, 1996, Lecture Notes in Statistics 109, Springer-Verlag, New York.
require(stats)
summary(lm.stack <- lm(stack.loss ~ stack.x))
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