Sentence examples for number of strata from inspiring English sources

However, in finite samples, post-stratification can increase variance if the number of strata is large and the strata are poorly chosen.

The term R = diag(V 1, … V H ) represents the error structure, which is assumed to be a diagonal matrix with separate stratum variances, represented by V h where h indexes strata and H is the total number of strata.

The number of strata may vary from language to language.

The stratum membership in a finite number of strata of the response and explanatory variables is recorded for each unit.

This new procedure is much faster than the existing one when the number of strata is large.

Using a map of carbon content with associated uncertainty, it optimizes stratified random sampling: number of strata, stratum boundaries, total sample size and sample sizes within strata.

With the usual design-based expansion estimator, the number of strata is important.

We can therefore say that at iteration i, the number of strata is 3i+1.

Since the intention is to have a small overall sample size the number of strata also needs to be small, at most two or three.

The goal of this algorithm was to minimize the variation covered within a given strata while reducing the total number of strata.

Unfortunately, this procedure becomes very slow as the number of strata increases and it even fails to select samples for some large numbers of strata.