You are working with the text-only light edition of "H.Lohninger: Teach/Me Data Analysis, Springer-Verlag, Berlin-New York-Tokyo, 1999. ISBN 3-540-14743-8". Click here for further information.


Suppose you have a collection of about 100 different sun blocks. The light protection factor (LPF) is specified by the manufacturer and is printed on the label of the tubes. Now if you were a scientist who had to check the correctness of the specified light protection factors, you would have two choices: (1) you could apply one of the standard methods to measure the LPF. These procedures are time-consuming, expensive and bear some health risks for the test persons. (2) You could measure the spectra of the sun blocks and set up a model which relates the spectra to the light protection factors. Thereafter you could apply the model to perform a screening of unknown samples. Click on the picture below to see the steps in detail.


Last Update: 2004-Jul-03