R's data.table package extends data.frame:. Contribute to Rdatatable/data.table development by creating an account on GitHub.
An R package to create “Table 1”, description of baseline characteristics Creates “Table 1”, i.e., description of baseline patient characteristics, which is essential in every medical research. Supports both continuous and categorical variables, as well as p-values and standardized mean differen...
of 3 variables: #> $ x: int 1 2 3 #> $ y: num 0.906 -0.154 0.608 #> $ z: chr "a" "b" "c" #> - attr(*, ".internal.selfref")=<externalptr> 可以看到,dt的类是data.table和data.frame,也就是说data.table继承了data.frame的一些行为,但增强了其他部分。
1 Errors when making tables with the flextable package 0 Add a flextable at a bookmark in the body of a word document from R 2 FlexTable output .docx horizontal table adjusted to narrow margins 2 Adding image to flextable and generate my flextable in Word document usi...
Penn World Table (Version 8.x) [R package pwt8 version 8.1-1] A Zeileis 被引量: 0发表: 2013年 Access xtable in package xtable R Ripley 被引量: 0发表: 0年 Suggests xtable License LGPL Suggests xtable License LGPLDescription This package allows the user to access functionality in the ...
MOQ 1PC Sample Order Is Welcomed Thickness 0.28-2mm Weight 80g/PC (50-150g/PC Optional) Square Weight 600GSM (450-850GSM Optional) Brand Name OEM Transport Package Inner Is Poly Bag, Outside Is Carton. Specification 30x45cm (11.8"x17.7") or cust...
library(MatchIt)## Warning: package 'MatchIt' was built under R version 3.5.3data(lalonde)lalonde$treat<-factor(lalonde$treat,levels=c(0,1,2),labels=c("Control","Treatment","P-value"))lalonde$black<-factor(lalonde$black)lalonde$hispan<-factor(lalonde$hispan)lalonde$married<-factor(lalonde...
data.table 这种数据结构相较于R中本源的data.frame 在数据处理上有运算速度更快,内存运用更高效,可认为它是data.frame 的升级版。同时,data.table 包具备更多更强的功能,它基本工作形式是, dt [i, j, by] dt 为data.table 结构 i 为取行,j 取列并执行功能,by 为分组 ...
Timing Range 0~99h59min Noise ≤65dB Consumption 500W Power Supply AC110V/220V, 50/60Hz External Size(W*D*H) mm 600*540*360 Package Size(W*D*H) mm 700*581*475 Net/Gross Weight(kg) 37/52 Rotor: No. Rotor Capacity Speed(rpm) RCF(×g) No.1 Angle Rotor...
1. 基数R的merge()函数 2. Dplyr的join函数族 3. 数据。表的括号语法 一、获取并导入数据 在这个例子中,我将使用我最喜欢的演示数据集之一——来自美国交通统计局的航班延误时间。如果您想跟随,请访问 http://bit.ly/USFlightDelays并下载您选择的时间段的数据,包括航班日期、Reporting_Airline、出发地、目的地...