英英释义:If a set of things are arranged or done in a particular order, they are arranged or done so one thing follows another, often according to a particular factor such as importance. ——Collins Write down your name in alphabetical order. 按照字母顺序写下你们的名字。 n. 秩序;治安 英英...
fct_relevel(f, rev) #按照反向排序的结果relevel fct_infreq()和fct_rev()也是两个极其简单但棒呆了的排序函数。 fct_inorder()(前面提到过)、fct_infreq()和fct_inseq()是一个家族的,并称Reorder factor levels by first appearance, frequency, or numeric order,其Usage...
Shenet al.(2004)have recently reported X-ray scattering data for liquid Fe measured in a DAC up to 58GPa. They conclude that the structure factor preserves the same shape as that of a close-packed hard-sphere liquid over the full pressure range, and that this supports the view that the...
The annealing temperature is probably a factor to facilitate CMRO. The degree of CSRO/CMRO should be better established under specific processing conditions. Finally, CMRO changes little in size and areal fraction after tensile deformation. This stresses that CMRO is mechanically stable during ...
(8)ddx[r(x)y]=r(x)f(x) Integrating both sides, the right-hand side does not depend on y and the left-hand side is written as a derivative of a function. Afterward, we solve for y. The method is called the integrating factor method where the function r(x) is called the integrat...
WHERE中的过滤条件被组织成表达式树,且被标准化为合取范式,每个合取项被称为一个Boolean Factor。过滤条件规范化为合取范式是值得我们学习的,不仅将复杂的粒度缩小为一个个Boolean Factor,便于尽早过滤,而且有利于某些优化。 每个Boolean Factor(以下用“谓词”指代)都可以估计一个选择度,是一个0~1的实数,用来衡量其...
This paper proposes a set of novel pricing factors for currency returns that are mo- tivated by microstructure models. In so doing, we bring two strands of the exchange rate literature, namely market-microstructure and risk-based models, closer together. Our novel factors use order flow data ...
Crystal structure of RPB5, a universal eukaryotic RNA polymerase subunit and transcription factor interaction target. Proc. Natl Acad. Sci. USA 97, 6306–6310, https://doi.org/10.1073/pnas.97.12.6306 (2000). Article ADS CAS PubMed Google Scholar Lafaye, C. et al. Biochemical and ...
The structural heterogeneity on intermediate length scale is also a crucial factor for determining glass properties, e.g., optical and photonic properties (Tan et al., 2020), and thermodynamic behavior (Liu et al., 2016; Ando et al., 2018). The MRO structural heterogeneity has an intimate ...
Here, using a massively parallel reporter assay (MPRA) of 209,440 sequences, we examine all possible pair and triplet combinations, permutations and orientations of eighteen liver-associated transcription factor binding sites (TFBS). We find that TFBS orientation and order have a major effect on ...