search

coderLMN / AutomatedDataCollectionWithR

《基于 R 语言的自动化数据采集技术》读者讨论区
28 stars 10 forks source link

17章分析产品评论里的情绪 #21

Open qweetty opened 6 years ago

qweetty commented 6 years ago

@coderLMN 老师您好！ 下面代码运行的错误没看懂，您能帮忙解答一下吗

FPAsins <- str_replace(firstPages,"_0001.html","") reviewsMeta <- data.frame(asin=FPAsins,one=NA,two=NA,three=NA,four=NA,five=NA,stringsAsFactors=F)

Error in data.frame(asin = FPAsins, one = NA, two = NA, three = NA, four = NA, : 参数值意味着不同的行数: 0, 1

coderLMN commented 6 years ago

FPAsins <- str_replace(firstPages,"_0001.html","") 是做什么的，出来的结果是什么？