R语言因子factor数据类型:使用factor函数将字符串向量转化为因子向量、使用ordered函数将字符串向量转化为有序的因子向量(ordinal categorical variable) R语言数据类型(data types) R语言因子(factor)数据类型、factor函数将字符串向量因子化(标称变量)、使用ordered函数基于levels参数对因子变量进行自定义排序称为序数因子...
olivroy changed the title Rebuild translation table (no need to worry about encoding for R >= 4.2 Rebuild translation table + support ordered factor in scan_data Nov 27, 2024 olivroy closed this Nov 27, 2024 olivroy reopened this Nov 27, 2024 rich-iannone approved these changes Nov ...
is.ordered()R语言中的函数用于检查传递的因子是否为有序因子。 用法: is.ordered(factor) 参数:factor:检查因子 范例1: # Creating a vector x<-c("female", "male", "male", "female") # Converting vector into factor gender <- factor(x) # Using is.ordered() Function # to check if a ...
The supramolecular organization of organic semiconductors on the dielectric layer of thin-film field-effect transistors is a crucial factor in achieving go... MA Loi,ED Como,F Dinelli,... - 《Nature Materials》 被引量: 232发表: 2004年 ...
This column needs to be a `factor`, and has several `levels`. Categories are displayed on the chart following the order of this factor, often in alphabetical order. Sometimes, we need to show groups in a specific order (A,D,C,B here). This can be done by reordering t...
如图所示,有一对与电阻R=0.5Ω相连的平行导轨M和N,它们在同一水平面上,现加一匀强磁场,磁感应强度B=1T,磁场方向竖直向下,两导轨间距离L=0.05m,一质量m=0.01kg导体杆a、b垂直放在导轨上,ab杆和导轨电阻均不计,ab与导轨间动摩擦因数μ=0.1.今以F的水平恒定拉力拉ab,使它以恒定速度v=4m/s向右运动,(g=10...
Phase transitions and iron-ordered moment form factor in LaFeAsO . Phys. Rev. B 82 , 064409 (2010).Li, H.-F., Tian, W., Yan, J.-Q., Zarestky, J.L., McCallum, R.W., Lograsso, T.A., Vaknin, D.: Phase transitions and iron-ordered moment form factor in LaFeAsO. Phys. ...
overlapping in size with human sound sets9. Thus, it is unlikely that, for animals, the size of the sound set is the factor limiting meaning generation. Rather, the animal capacity to generate communicative sequences is considered highly constrained, both in terms of structural systematicity and...
In the Supplementary Table I, the definitions of symmetry invariants in terms of the factor system are given, resulting in 680 quasiparticle types. Where can we find materials that realize all these values for symmetry invariants? To be more precise, for a given point group P and specified ...
When l is odd, contributions to the structure factors for 00l reflection from all oxygen atoms and D3 (see labels for D sites in Fig. 5) will be zero for the 45 configurations. Thus, other deuterium atoms, D1, D2, and D4 could contribute to the structure factor, which is ...