| Article ID: | iaor1988370 |
| Country: | France |
| Volume: | 21 |
| Issue: | 2 |
| Start Page Number: | 175 |
| End Page Number: | 198 |
| Publication Date: | May 1987 |
| Journal: | RAIRO Operations Research |
| Authors: | Benasseni J. |
When the weights of some of the observations are modified in principal component analysis, the accuracy of recent approximations for the eigenvalues and eigenvectors is discussed. An illustration of the results is given with an example.