As in ordinary regression models, the problem of the heteroscedasticity test still exists in nonlinear models with correlated errors, but, the test for correlation also needs to be considered.

和普通的非线性回归模型一样，具有相关误差的非线性模型也存在异方差检验问题，但通常还要检验相关性。

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In addition, its built-in data correlation filters detect variable data, as well as preparing tests for data-driven load test generation.

另外，它的嵌入式数据相关性过滤器能够检查可变数据，并根据数据驱动加载测试需求进行测试。

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This article discusses how to make up a test data set so that it is large enough to be useful for testing and has the expected distribution of values and correlation between columns.

本文讨论了如何构建一个测试数据集，以使该数据集达到用于测试的规模，并且具有期望的值分布和列间相关性。

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For now the correlation between test results and course performance is .45 (roughly the same as between SAT scores and college GPA).

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