使列名称好R [英] Making good column names R

问题描述

我使用RODBC从Microsoft Access读取了一个表.有些变量的名称中带有空格.

I read a table from Microsoft Access using RODBC. Some of the variables had a name with a space in it.

R没问题，但我有. 我不知道如何指定空格

R has no problem with it but I do. I cannot find out how to specify the space

names(alltime)
 [1] "ID"            "LVL7"          "Ref Pv No"     "Ref Pv Name"   "DOS"           "Pt Last Name"  "Pt First Name" "MRN"           "CPT"           "CPT Desc"      "DxCd1"         "DxCd2"         "DxCd3"         "DxCd4"        
[15] "DOE"    

但是如果我想做这样的事情怎么办

But what do I do if I want to do something such as this

> alltime[grep("MIDDLE EAR EXPLORE",alltime$CPT Desc,]
Error: unexpected symbol in "alltime[grep("MIDDLE EAR EXPLORE",alltime$CPT Desc"

推荐答案

另请参见make.names

这篇关于使列名称好R的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！