If you want to do any sort of stock analysis, quantmod is really great as it bundles a number of other related packages with financial application together: ht

If you want to do any sort of stock analysis, quantmod is really great as it bundles a number of other related packages with financial application together: http://www.quantmod.com/ http://www.quantmod.com/. If you have to deal with directed graphs, iGraph http://igraph.sourceforge.net/ http://igraph.sourceforge.net/. Related Blog Posts http://www.r-chart.com/2010/06/stock-analysis-using-r.html http://www.r-chart.com/2010/06/stock-analysis-using-r.html http://www.r-chart.com/2010/06/analyze-twitter-data-using-r.html http://www.r-chart.com/2010/06/analyze-twitter-data-using-r....