nchar(Terms(x), type = "chars") 中的错误:检查文档术语矩阵时，多字节字符串无效，元素 204 [英] Error in nchar(Terms(x), type = "chars") : invalid multibyte string, element 204, when inspecting document term matrix

问题描述

这是我使用过的源代码:

Here is the source code that I have used:

 MyData <- Corpus(DirSource("F:/Data/CSV/Data"),readerControl = list(reader=readPlain,language="cn"))
    SegmentedData <- lapply(MyData, function(x) unlist(segmentCN(x)))
    temp <- Corpus(DataframeSource(SegmentedData), readerControl = list(reader=readPlain, language="cn"))

预处理数据

temp <- tm_map(temp, removePunctuation)
temp <- tm_map(temp,removeNumbers)
removeURL <- function(x)gsub("http[[:alnum:]]*"," ",x)
temp <- tm_map(temp, removeURL)
temp <- tm_map(temp,stripWhitespace)
dtmxi <- DocumentTermMatrix(temp)
dtmxi <- removeSparseTerms(dtmxi,0.83)

**inspect(t(dtmxi))** ---This is where I get the error

推荐答案

我的RStudio在设置Sys.setlocale('LC_ALL','C') 并运行 TermDocumentMatrix( mycorpus ) 函数.

My RStudio restarts the session after to set Sys.setlocale( 'LC_ALL','C' ) and run the TermDocumentMatrix( mycorpus ) function.

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