我遵循了这个链接的字数计算程序。链接由“rhadoop-wordcountusingrmr”给出
我正在获取输出，但它不是可读格式。我希望在输出中有键值对。我该怎么做呢。我应该对代码做什么修改。请帮帮我。
这是输出
hadoop@hadoop-vm用法：~/apache/hadoop-1.2.1$bin/hadoop fs-cat/user/hadoop/out10/part*seq/org.apache.hadoop.typedbytes.typedbyteswritable/org.apache.hadoop.typedbytes.typedbyteswritable�9d×5x��&�\hadoop@hadoop-vm用法：~/apache/hadoop-1.2.1$
这是密码

Sys.setenv("HADOOP_CMD"="/usr/local/hadoop/bin/hadoop")
Sys.setenv("HADOOP_STREAMING"="/usr/local/hadoop/share/hadoop/tools/lib/hadoop-streaming-2.4.0.jar")

# load librarys

library(rmr2)
library(rhdfs)

# initiate rhdfs package

hdfs.init()

map <- function(k,lines) {
  words.list <- strsplit(lines, '\\s')
  words <- unlist(words.list)
  return( keyval(words, 1) )
}

reduce <- function(word, counts) {
  keyval(word, sum(counts))
}

wordcount <- function (input, output=NULL) {
  mapreduce(input=input, output=output, input.format="text", map=map, reduce=reduce)
}

## read text files from folder example/wordcount/data

hdfs.root <- 'example/wordcount'
hdfs.data <- file.path(hdfs.root, 'data')

## save result in folder example/wordcount/out

hdfs.out <- file.path(hdfs.root, 'out')

## Submit job

out <- wordcount(hdfs.data, hdfs.out) 

## Fetch results from HDFS

results <- from.dfs(out)
results.df <- as.data.frame(results, stringsAsFactors=F)
colnames(results.df) <- c('word', 'count')

head(results.df)