单词 | covariance |
例句 | As scary as these formulas look they are really just the ratio of the covariance between the two variables and the product of their two standard deviations. Introductory Business Statistics 2017-11-29T00:00:00Z General relativity assumes a mathematical symmetry called general covariance, which says that no matter how you label or map spacetime coordinates—i.e. positions and times of events—the predictions of the theory must be the same. A simple explanation of mysterious space-stretching ‘dark energy?’ 2017-01-10T05:00:00Z The covariance of the Entwurf field equations, by contrast, was severely limited. History: Einstein was no lone genius 2015-11-15T05:00:00Z We use this calculated covariance as a metric to quantitatively define ‘concordance’. Chromatin architecture reorganization during stem cell differentiation : Nature : Nature Publishing Group 2015-02-17T05:00:00Z The problem is that you can bend it in endlessly different ways and produce the same results, a fact made possible by Einstein’s central principle, general covariance. Schrodinger’s Rats and The Search for Ultimate Reality [Excerpt] 2014-01-31T15:00:00Z There certainly needs to be much more research looking at the crucial role of genotype-environment covariance in the development of cognitive ability. The Heritability of Intelligence: Not What You Think 2013-10-17T17:15:07.627Z The top five principle components were used as fixed effects and the matrix of genetic distance was used to model the variance–covariance matrix of the random effect. A map of rice genome variation reveals the origin of cultivated rice 2012-10-24T17:21:24.910Z By teaching himself the mathematics necessary for his task Price found inspiration in the concept of covariance in order to show how a trait would evolve from one generation to the next. The Good Fight 2012-07-09T16:15:00.200Z Shown in red are the observed covariance values, while in grey are covariance values calculated after randomly shuffling the vector of gene expression values for each lineage. Chromatin architecture reorganization during stem cell differentiation : Nature : Nature Publishing Group 2015-02-17T05:00:00Z Giving it a name would require choosing a single language, a preferred coordinate system, violating general covariance, breaking the symmetry of a linguistic spacetime. Schrodinger’s Rats and The Search for Ultimate Reality [Excerpt] 2014-01-31T15:00:00Z Time series of NPP are best estimated from eddy covariance flux tower data, of which >400 towers exist worldwide, some with 10 to 15 years of continuous data. [Technical Response] Response to Comments on ?Drought-Induced Reduction in Global Terrestrial Net Primary Production from 2000 Through 2009? 2011-08-25T18:25:30.670Z Even this estimate neglected heteroskedasticity, gene-environment interactions, gene-environment covariance, the existence of shared environment beyond the family, and the possibility that the samples being used are not representative of the broader population. The Politics of the Null Hypothesis 2011-05-25T15:15:08.650Z A year after Price had begun working he finally had his answer and wrote to Hamilton about the covariance equation he’d derived. The Good Fight 2012-07-09T16:15:00.200Z To calculate a P value for the covariance for each gene, we compared these observed covariance values to a random background distribution. Chromatin architecture reorganization during stem cell differentiation : Nature : Nature Publishing Group 2015-02-17T05:00:00Z Shown in red are the observed covariance values, while in grey are covariance values calculated after randomly shuffling the vector of gene expression values for each lineage. Chromatin architecture reorganization during stem cell differentiation : Nature : Nature Publishing Group 2015-02-17T05:00:00Z The background distribution was generated by randomly shuffling the vector of log2 of gene expression for each gene and then calculating the covariance between the random gene expression vector and the PC1 values. Chromatin architecture reorganization during stem cell differentiation : Nature : Nature Publishing Group 2015-02-17T05:00:00Z |
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