Question

我有一个非常大的键值数据集，我从这样的CSV文件中导入并重新整形为一个很长的表：

#read in suitability data file
allapp <- read.csv(file="Dist.csv", header=TRUE, sep=",")

#clip and reshape key values into a table
appdata <- subset(allapp, grepl("^SUIT*", allapp$XmlKey))
appdata <- select(appdata, TransIdentifier, XmlKey, XmlValue)
appdata <-spread(appdata, XmlKey, XmlValue)

所有字段都以文本值的形式输入。当我将列转换为数值时，所有非零字段都可以正确转换：

#Income & expense analysis - source
appdata <- rename(appdata, Monthly_Income = SUIT42)
appdata$Monthly_Income <- as.numeric(appdata$Monthly_Income)

然而，出于某种原因，每个＆＃34; 0＆＃34;被转换为数字71。当我将表写入csv文件时，＆＃34; 0＆＃34; s看起来很正常：

  "0","100000","0","0","0","0","0","0","0","0",NA,"0","0","0","0","0","0","0","0",NA,"0","0","false",NA,

知道为什么吗？

Answer 1

使用：

解决

appdata$Monthly_Income <- as.numeric (as.character(appdata$Monthly_Income))

转换文本时出错＆＃34; 0＆＃34;到数字0

1 个答案: