Principal Component Amplitudes and Eigenspectra for SDSS-DR7

Here are the PCA amplitudes, errors and normalisations (77Mb), and eigenspectra (1.6Mb) for all galaxies in SDSS DR7*. The variables in the IDL files should all be self-explanatory, but please email me if not. Note that the second PCA amplitude (PC2) is negative compared to the figures in Wild et al. 2007, you must use -PC2. This is because PCA is agnostic to the sign of the eigenvectors.

NEW!!! A python numpy version of the PCA amplitudes is available here . Thank you to Dalya Baron for providing this file. I have not verified the file, so please contact me if you find anything unexpected.

If you use these data, please cite the paper Wild et al. 2007, MNRAS, 381, 543 ADS

* specclass = 2 and specobjall table so contains duplicates. Further ID information is available in this file .