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## New answers tagged error

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### How to determine the confidence intervals for the principal axes of a second-rank tensor?

The description is quite long, so I may have missed something. So you have a tensor $\mathbf{k}=k^{ij}\mathbf{e_i}\otimes \mathbf{e_j}$, $k^{ij}=k^{ji}$. You then are interested in the projection of ...
• 698
0 votes

### What's the difference between the variance and the mean squared error?

The two are similar. You're squaring values on a graph to give a positive difference. However the variance is self however contained. i.e. it's only measured against itself. Whereas the Mean Squared ...
4 votes

There are a bunch of ways. Two reasonably popular ways are the Brier score and the log loss. The Brier score is square loss, the same as mean squared error: $\text{Brier}\left(e, p\right) = \dfrac{1}{... • 64.3k 0 votes ### How can I find the standard deviation of the sample standard deviation from a normal distribution? I just want to point out that the standard deviation of$s$can be well approximated by$\text{SD}(s)\approx \sigma/\sqrt{2n}$when$n$is large. The relative error is less than 0.38% for$n=100\$ and ...
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