| Formaldehyde | 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 sulphuric acid and the reading of the resulting purple color on a spectrophotometer.
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); require(graphics)
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)
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