| alaska_forest | Cooperative Alaska Forest Inventory data |
| binaryalphadigits | Binary Alphadigits |
| digits | USPS Handwritten Digits |
| faces | Olivetti Faces |
| frey | Frey Faces |
| igg1 | Human immunoglobulin G1 antibody molecule |
| lightspeeds | Historical Determinations of the Speed of Light |
| michelson_1879 | A.A. Michelson's 1879 Determinations of the Speed of Light |
| minority | Canadian Visible Minority Data 2006 |
| ordalphadigits | Binary Alphadigits Isomap |
| ordfrey | Frey Faces Isomap |
| pkg_data | Simple summary of data available in named packages |