MATH_ADD_CODE

Centos7下安装R的方法总结 在Centos下安装R的时候，遇到了许多问题，进过多次的安装，卸载，再安装的过程。对Centos下安装R进行了总结；方法主要主要有两类： 方法（1）推荐方法： 采用epel-realse源安装R语言, 类似于ubuntu下的sudo apt-get install r-base, 步骤1:yum install -y epel-release 步骤2

参考资料：https://max.book118.com/html/2017/0731/125536057.shtm

ANALYSIS.Rmdss Built_report.R# Set working directory setwd("D:\\R_PROJECT\\machine_learning\\machine\\secco")# Load packages require(knitr) require(markdown) # Create .md, .html, and .pdf files knit("M

library(mailR) sender <- c("发送邮箱") recipients <- c("接收邮箱") send.mail(from = sender, to = recipients, encoding = 'utf-8', subject = "自动化报告", body = "数据报表",

从github中load数据 library(RCurl) x getURL("https://raw.github.com/aronlindberg/latent_growth_classes/master/LGC_data.csv") y read.csv(text = x) From UCI ## Not run: # Download UCI Archived Data

1、JDBC 可以对数据库操作 dbSendUpdate(codb,"delete from dbo.a_gas_alarm where End_DT = '2018-01-15 09:00:33';") # details： Methods for the class ‘JDBCConnection’ in Package ‘RJDBC’. dbSendQuery and db