r - R - 将文件夹中的文件读入一个数据框

Question

#1个文件

new <- fromJSON("./kkbox-music-recommendation-challenge/mpd.slice.0-999.json", flatten = TRUE) %>% as.data.frame

如何对一个数据框中的多个文件执行此操作？

列表

> json_files
[1] "./kkbox-music-recommendation-challenge//mpd.slice.0-999.json"    
[2] "./kkbox-music-recommendation-challenge//mpd.slice.1000-1999.json"
[3] "./kkbox-music-recommendation-challenge//mpd.slice.2000-2999.json"
[4] "./kkbox-music-recommendation-challenge//mpd.slice.3000-3999.json"
[5] "./kkbox-music-recommendation-challenge//mpd.slice.4000-4999.json"
[6] "./kkbox-music-recommendation-challenge//mpd.slice.5000-5999.json"

标签： rjsonmultithreadingdataframe