`hi+` <- function(x,y) { x+y } `hi+`(1,2) 1. 2. 3. 4. 5. 6. 7. 8. 9. 使得各种变量名称都能定义,提高了语言的容忍度。 R随机产生一个1-9的数: sample( seq (1,9,by=1), 1 , replace=TRUE ) 1. SWEEP函数: sweep( x, Margin, Stats, FUN=“-“, ) x: 数据矩阵 Mar...
R语言中的阿萨cex emacs 代码提示 追溯到2012年,《 哈佛商业评论》发表了一篇文章,宣称“数据科学家”是21世纪最性感的工作 。 从那时起,对数据科学的兴趣激增。 许多伟大的开源项目,例如Python和用于统计计算的R语言,都促进了我们分析数据的快速发展。 我的职业生涯是使用铅笔和纸开始的,后来转到了电子表格。 现...
The values of the residual width in diluted compounds suggest different origins of the low temperature relaxation mechanism: exchange coupling in CeMg3 and Kondo coupling in CeMg.R.M.GaleraandJ.PierreandA.P.MuraniSDOSJournal of Magnetism & Magnetic Materials...
In general, ARPES probes the single-particle spectral function directly, and the many-body interactions exhibiting themselves as renormalization effects in band dispersion are included in the self-energy. The peak position of the real part of self-energy (Re Σ) corresponds to the characteristic ene...
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,Heyen,R.,Liu,M.,Cardona,S.,Piol,R. 摘要: We present a comprehensive analysis of Raman spectra in the R2-xCexCuO4 system (R=Gd,Sm,Nd,Pr) as a function of doping, temperature, rare-earth atomic radius, and Raman resonance conditions. Phonon frequencies as well as their temperature d...
Uni_cox_model<- function(x){ FML <- as.formula(paste0 ("y~",x)) cox<- coxph(FML,data=aa) cox1<-summary(cox) HR <- round(cox1$coefficients[,2],2) PValue <- round(cox1$coefficients[,5],3) CI5 <-round(cox1$conf.int[,3],2) ...
Hole superconductivity in the electron-doped superconductor Pr2-xCexCuO4 We measure the resistivity and Hall angle of the electron-doped superconductor Pr 2 x Ce x Cu O 4 as a function of doping and temperature. The resistivit... Y Dagan,RL Greene - 《Phys.rev.b》 被引量: 40发表: 200...
picosecond (0.5 ns) reduces the uncertainty of event location by a factor of 2. To appreciate the value of this particular improvement, it is to be noted that the factor of 2 increase in time resolution accuracy results in a corresponding increase in signal-to-noise ratio. This results in ...