毕业设计的外文文献翻译，4800中文字。 （翻译含原英文文本和翻译文本；还有PDF格式的原文献文档）-Graduation literature in foreign languages translation, 4800 Chinese characters. (Translation with the original English text and translation of the text have the original documents PDF format d

最新xv6 rev3 英文文档,文档名称xv6-rev3.pdf-xv6 documents for rev3,The booklet is available as xv6-rev3.pdf

tm包是R语言中为文本挖掘提供综合性处理的package，进行操作前载入tm包，vignette命令可以让你得到相关的文档说明。 >vignette("tm") //会打开一个tm.pdf的英文文件，讲述tm package的使用及相关函数-R language tm package is to provide comprehensive treatment for text mining package, loaded tm package before the operation,