R语言编程，重要的数据统计与分析工具，有两份资料，相当有参考价值. -R language programming, an important technical tool for data statistics and analysis. Two files attached, of considerate reference.

介绍R语言中sna 软件包的功能和用法的一个非常好的文章-give some details of SNa in R

软件工程可行性报告:说明可行性分析的必要性,简述项目的来源、现状，研发组织，要求，目标等,将该可行性分析中的术语、缩写词进行定义。-Software engineering feasibility report: Explain the need for feasibility analysis, outlining the project s origin, status, R & D organization, requirements, objectives, feasibility an

对人才市场进行分析，确定所需实体，进行数据库设计，并画出功能结构图，E-R图，数据表-Talent market analysis, to determine the required entity, design, and draw functional structure diagram, ER diagrams, data tables