我有法律数据,看起来像这样.我正在使用RStudio.
> head(gsu[,107:117])
HtoODay PAOSLDME DUSHD POELRD XCAB WESDF BILOE HYPERDIF IMPSENS Billing MALLAMP
42 0 <NA> No No <NA> <NA> <NA> No <NA> Hourly NA
61 0 <NA> Yes Yes <NA> Yes <NA> Yes <NA> Hourly NA
230 0 <NA> No Yes <NA> <NA> <NA> Yes <NA> Hourly NA
235 0 <NA> No No <NA> <NA> <NA> Yes <NA> Hourly NA
302 0 <NA> No No <NA> <NA> No No <NA> Hourly NA
336 3 <NA> No No Yes …我有一些匿名的调查数据:
df <- structure(list(User = c("user1", "user2", "user3", "user4", "user5",
"user6", "user7", "user8", "user9", "user10", "user11", "user12",
"user13", "user14"), Q1 = c(0, 3, 5, 0, 6, 5, 1, 4, 6, 4, 5,
0, 0, 0), Q2 = c(0, 6, 4, 0, 4, 5, 0, 4, 6, 5, 5, 5, 0, 4), Q3 = c(0,
4, 5, 3, 4, 5, 0, 4, 4, 5, 5, 0, 0, 0), Q4 = c(5L, 6L, 6L, 7L,
6L, 6L, 6L, 4L, 3L, 4L, 6L, …我有一个包含混合类的数组:
arr = ["I", "have", 2, "dimes", "and" , 3, "nickels"]
如何在不修改字符串的情况下对数组中的整数执行加法？
预期的输出是,
["I", "have", 3, "dimes", "and" , 4, "nickels"]
我有包含唯一标识符,类别和说明的数据.以下是玩具数据集.
prjnumber <- c(1,2,3,4,5,6,7,8,9,10)
category <- c("based","trill","lit","cold",NA,"epic", NA,NA,NA,NA)
description <- c("skip class",
"dunk on brayden",
"record deal",
"fame and fortune",
NA,
"female attention",
NA,NA,NA,NA)
toy.df <- data.frame(prjnumber, category, description)
> toy.df
prjnumber category description
1 1 based skip class
2 2 trill dunk on brayden
3 3 lit record deal
4 4 cold fame and fortune
5 5 <NA> <NA>
6 6 epic female attention
7 7 <NA> <NA>
8 8 <NA> <NA>
9 9 <NA> <NA>
10 10 <NA> …我有一个带有Zipcode列的表.Zipcode列是一个int.如何更新此列以显示填充的零,以便所有值都是5位数？我知道如何将此作为SELECT语句,但我不知道如何更新表中的coulmn.以下是我的最大努力.
USE RTCA_new
GO
UPDATE tbl_BASE
SET Zipcode = (
SELECT FORMAT(Zipcode, '00000')
FROM rtca.tbl_BASE
)
产生的错误是:
子查询返回的值超过1.当子查询跟随=,!=,<,<=,>,> =或子查询用作表达式时,不允许这样做.该语句已终止.
简而言之,我希望邮政编码值802显示为00802
我有数据反映了每个大陆河流的宽度.下面是一个示例数据集.我只想把数据放到我展示的表格中.
dat <- read.table(text =
"width continent bin
5.32 Africa 10
6.38 Africa 10
10.80 Asia 20
9.45 Africa 10
22.66 Africa 30
9.45 Asia 10",header = TRUE)
如何融合上述玩具数据集来创建此数据框？
Bin Count Continent
10 3 Africa
10 1 Asia
20 1 Asia
30 1 Africa
在给定这些命令的情况下,是否有可能编写一行代码来对mylistA进行排序,而不是mylistB
mylistA = [5,23,7,-1]
mylistB = mylistA