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8.2.45.24 octave.dataset.Formaldehyde

Static Method: out = Formaldehyde ()

Determination of Formaldehyde

Description

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.

Format

record

Observation record number.

carb

Carbohydrate (ml).

optden

Optical Density

Source

Bennett, N. A. and N. L. Franklin (1954). Statistical Analysis in Chemistry and the Chemical Industry. New York: Wiley.

References

McNeil, D. R. (1977). Interactive Data Analysis. New York: Wiley.

Examples

t = octave.dataset.Formaldehyde;

figure
scatter (t.carb, t.optden)
% TODO: Add a linear model line
xlabel ("Carbohydrate (ml)")
ylabel ("Optical Density")
title ("Formaldehyde data")

% TODO: Add linear model summary output
% TOD: Add linear model summary plot