Timeline for Reversing PCA back to the original variables
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 23, 2016 at 20:35 | review | Late answers | |||
| Mar 23, 2016 at 20:53 | |||||
| Mar 23, 2016 at 20:34 | comment | added | amoeba | That's because there is no way to perfectly reconstruct $X$ from $V$ if you kept only $2<m$ principal components. One can, however, do a best possible reconstruction; it is given by $V^\top VX$. It's not equal to $X$. | |
| Mar 23, 2016 at 20:27 | history | undeleted | sibyl1956 | ||
| Mar 23, 2016 at 20:27 | history | edited | sibyl1956 | CC BY-SA 3.0 | added 75 characters in body |
| Mar 23, 2016 at 20:20 | history | deleted | sibyl1956 | via Vote | |
| Mar 23, 2016 at 20:20 | review | First posts | |||
| Mar 23, 2016 at 20:25 | |||||
| Mar 23, 2016 at 20:18 | history | answered | sibyl1956 | CC BY-SA 3.0 |