stats,circlize,GoodmanKruskal,graphics,RColorBrewer,
reshape2,maps,blockmodeling,igraph,utils,plyr,dplyr,
statnet,animation,Matrix,cowplot,ggplot2,GGally,
fastmatch,intergraph,sna,tnet,WDI,network,xergm,
xergm.common,networkDynamic,ndtv,comtradr