Pilot-Plant Data — pilot • robustbase

Pilot-Plant data from Daniel and Wood (1971). The response variable corresponds to the acid content determined by titration and the explanatory variable is the organic acid content determined by extraction and weighing. This data set was analyzed also by Yale and Forsythe (1976).

data(pilot, package="robustbase")

Format

A data frame with 20 observations on the following 2 variables.

X: Organic acid content - extraction
Y: Acid content - titration

Source

P. J. Rousseeuw and A. M. Leroy (1987) Robust Regression and Outlier Detection; Wiley, page 21, table 1.

Examples

data(pilot)
summary(lm.pilot <- lm(Y ~.,data=pilot))
#> 
#> Call:
#> lm(formula = Y ~ ., data = pilot)
#> 
#> Residuals:
#>      Min       1Q   Median       3Q      Max 
#> -1.61909 -1.16685  0.01909  0.72765  2.15979 
#> 
#> Coefficients:
#>              Estimate Std. Error t value Pr(>|t|)    
#> (Intercept) 35.458272   0.635049   55.84   <2e-16 ***
#> X            0.321608   0.005555   57.90   <2e-16 ***
#> ---
#> Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
#> 
#> Residual standard error: 1.23 on 18 degrees of freedom
#> Multiple R-squared:  0.9947,	Adjusted R-squared:  0.9944 
#> F-statistic:  3352 on 1 and 18 DF,  p-value: < 2.2e-16
#>