Erratum: On the numerical stability of two widely used PLS algorithms

The above article (DOI: 10.1002/cem.1112) was published online on 14 February 2008. An error was subsequently identified: the captions for Figures 1 and 2 were omitted; they should read as follows: Figure 1. Orthogonality criterion (θ_A) for the octane data as a function of number of components (A) calculated using the standard PLS algorithm and SIMPLS. Figure 2. Orthogonality criterion (θ_A) for the wines data as a function of number of components (A) calculated using the standard PLS algorithm and SIMPLS.