Formaldehyde {datasets} | R Documentation |
These data are from a chemical experiment to prepare a standard curve for the determination of formaldehyde by the addition of chromatropic acid and concentrated sulpuric acid and the reading of the resulting purple color on a spectophotometer.
Formaldehyde
A data frame with 6 observations on 2 variables.
[,1] | carb | numeric | Carbohydrate (ml) |
[,2] | optden | numeric | Optical Density |
Bennett, N. A. and N. L. Franklin (1954) Statistical Analysis in Chemistry and the Chemical Industry. New York: Wiley.
McNeil, D. R. (1977) Interactive Data Analysis. New York: Wiley.
require(stats) plot(optden ~ carb, data = Formaldehyde, xlab = "Carbohydrate (ml)", ylab = "Optical Density", main = "Formaldehyde data", col = 4, las = 1) abline(fm1 <- lm(optden ~ carb, data = Formaldehyde)) summary(fm1) opar <- par(mfrow = c(2,2), oma = c(0, 0, 1.1, 0)) plot(fm1) par(opar)