Timeline for Are explanatory variables considered random in PCA?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 10, 2014 at 21:51 | comment | added | gung - Reinstate Monica | Variance is simply a property of a set of numbers. The existence of a variance does not presuppose that the variable was stochastic. You can take a variance of a variable fixed at prespecified levels. What you might legitimately conclude from the variance may be another issue, though. | |
| Jun 10, 2014 at 21:48 | comment | added | Pasato | Thanks gung. By the way - is it mathematically legit to take variance of variable which we do not assume to be random? | |
| Jun 10, 2014 at 21:47 | vote | accept | Pasato | ||
| Jun 10, 2014 at 21:45 | history | answered | gung - Reinstate Monica | CC BY-SA 3.0 |